Observation List
Get a list of Observation objects.
GET /api/v3/observations/?format=api&offset=3400
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stratospheric aerosols are observed with GOMOS (and tested for SCIAMACHY)." }, { "ob_id": 30128, "uuid": "7fe9f59731ab47b6a20e792e0cba4641", "short_code": "coll", "title": "National Centre for Earth Observation (NCEO) partnered datasets", "abstract": "The National Centre for Earth Observation (NCEO) has a proud tradition of being involved with some of the most successful international collaborations in the Earth observation. This Collection contains dataset generated and/or archived with the support of NCEO resource or scientific expertise. Some notable collaboration which generated data within this collection are as follows:\r\n\r\nThe European Space Agency (ESA)'s Climate Change Initiative (CCI) program. The program goal is to provide stable, long-term, satellite-based Essential Climate Variable (ECV) data products for climate modelers and researchers.\r\n\r\nThe EUSTACE (EU Surface Temperature for All Corners of Earth) project is produced publicly available daily estimates of surface air temperature since 1850 across the globe for the first time by combining surface and satellite data using novel statistical techniques.\r\n\r\nFIDUCEO has created new climate datasets from Earth Observations with a rigorous treatment of uncertainty informed by the discipline of metrology. This response to the need for enhanced credibility for climate data, to support rigorous science, decision-making and climate services. The project approach was to develop methodologies for generating Fundamental Climate Data Records (FCDRs) and Climate Data Records (CDRs) that are widely applicable and metrologically rigorous. \r\n\r\nThe “BACI” project translates satellite data streams into novel “essential biodiversity variables” by integrating ground-based observations. The trans-disciplinary project offers new insights into the functioning and state of ecosystems and biodiversity. BACI enables the user community to detect abrupt and transient changes of ecosystems and quantify the implications for regional biodiversity.\r\n\r\nThe UK Natural Environment Research Council has established a knowledge transfer network called NCAVEO (Network for Calibration and Validation of EO data - NCAVEO) which has as its aim the promotion and support of methodologies based upon quantitative, traceable measurements in Earth observation. \r\n\r\nThe Geostationary Earth Radiation Budget 1 & 2 instruments (GERB-1 and GERB-2) make accurate measurements of the Earth Radiation Budget. They are specifically designed to be mounted on a geostationary satellite and are carried onboard the Meteosat Second Generation satellites operated by EUMETSAT. They were produced by a European consortium led by the UK (NERC) together with Belgium, Italy, and EUMETSAT, with funding from national agencies.\r\n\r\nGloboLakes analysed 20 years of data from more than 1000 large lakes across the globe to determine 'what controls the differential sensitivity of lakes to environmental perturbation'. This was an ambitious project that was only possible by bringing together a consortium of scientists with complementary skills. These include expertise in remote sensing of freshwaters and processing large volumes of satellite images, collation and analysis of large-scale environmental data, environmental statistics and the assessment of data uncertainty, freshwater ecology and mechanisms of environmental change and the ability to produce lake models to forecast future lake conditions.\r\n\r\nThis SPEI collaboration consists of high spatial resolution Standardized Precipitation-Evapotranspiration Index (SPEI) drought dataset over the whole of Africa at different time scales from 1 month to 48 months. It is calculated based on precipitation estimates from the satellite-based Climate Hazards Group InfraRed Precipitation with Station data (CHIRPS) and potential evaporation estimates by the Global Land Evaporation Amsterdam Model (GLEAM)." } ], "responsiblepartyinfo_set": [ 71935, 71936, 71934, 104910, 105126, 105304, 71938, 71939, 71937 ], "onlineresource_set": [ 15121, 15122, 15123, 15120, 15125, 15885, 16483, 15124 ] }, { "ob_id": 19118, "uuid": "411a1599c96e43659a8141749c277ef4", "title": "ESA Aerosol Climate Change Initiative (Aerosol CCI): Level 3 aerosol products from AATSR (ORAC algorithm), Version 3.02", "abstract": "The ESA Climate Change Initiative Aerosol project has produced a number of global aerosol Essential Climate Variable (ECV) products from a set of European satellite instruments with different characteristics. \r\n\r\nThis dataset comprises the Level 3 aerosol products from AATSR, using the ORAC algorithm, version 3.02. Both daily and monthly gridded products are available\r\n\r\nFor further details about these data products please see the linked documentation.", "creationDate": "2022-07-22T09:15:57.183554", "lastUpdatedDate": "2022-07-22T09:15:57.272326", "latestDataUpdateTime": "2016-05-06T23:20:24.346264", "updateFrequency": "", "dataLineage": "Data were processed by the ESA CCI Aerosol project team and supplied to CEDA in the context of the ESA CCI Open Data Portal Project.", "removedDataReason": "", "keywords": "ESA, CCI", "publicationState": "published", "nonGeographicFlag": false, "dontHarvestFromProjects": true, "language": "English", "resolution": "", "status": "superseded", "dataPublishedTime": "2016-05-07T12:20:50", "doiPublishedTime": null, "removedDataTime": null, "geographicExtent": { "ob_id": 529, "bboxName": "Global (-180 to 180)", "eastBoundLongitude": 180.0, "westBoundLongitude": -180.0, "southBoundLatitude": -90.0, "northBoundLatitude": 90.0 }, "verticalExtent": null, 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tested for SCIAMACHY)." } ], "inspireTheme": [], "topicCategory": [], "phenomena": [ 25983, 50542, 50543, 54500, 54501, 54502, 54503, 54504, 54505, 54506, 54507, 54508, 54509, 54510, 54511, 54512, 54513, 54514, 54515, 54516, 54517, 54518, 54519, 54520, 54521, 54522, 54523, 54524, 54525, 54526, 54527, 54528, 54529, 54530, 54531, 54532, 54533, 54534, 54535, 54536, 54537, 54538, 54539, 54540, 54541, 54542, 54543, 54544, 54545, 54546, 54547, 54548, 54549, 54550, 54551, 54552, 54553, 54554, 54555, 54556, 54557, 54558, 54559, 54560, 54561, 54562, 54563, 54564, 54565, 54566, 54567, 54568, 54569, 54570, 54571, 54572, 54573, 54574, 54575, 54576, 54577, 54578, 54579, 54580, 54581, 54582, 54583, 54584, 54585, 54586, 54587, 54588, 54589, 54590, 54591, 54592, 54593, 54594, 54595, 54596, 54597, 54598, 54599, 54600, 54601, 54602, 54603, 54604, 54605, 54606, 54607, 54608, 54609, 54610, 54611, 54612, 54613, 54614, 54615, 54616, 54617, 54618, 83743, 83744, 83745, 83746, 83747, 83748, 83749, 83750, 83751, 83752, 83753, 83754, 83755, 83756, 83757, 83758, 83759, 83760 ], "vocabularyKeywords": [ { "ob_id": 10808, "vocabService": "clipc_skos_vocab", "uri": "http://vocab.ceda.ac.uk/collection/cci/platform/plat_envisat", "resolvedTerm": "Envisat" }, { "ob_id": 10090, "vocabService": "clipc_skos_vocab", "uri": "http://vocab-test.ceda.ac.uk/collection/cci/org/org52", "resolvedTerm": "Rutherford Appleton Laboratory" }, { "ob_id": 10594, "vocabService": "clipc_skos_vocab", "uri": "http://vocab.ceda.ac.uk/collection/cci/dataType/dtype_aerProd", "resolvedTerm": "multiple aerosol products" }, { "ob_id": 10181, "vocabService": "clipc_skos_vocab", "uri": "http://vocab-test.ceda.ac.uk/collection/cci/procLev/proc_level3", "resolvedTerm": "Level 3" }, { "ob_id": 10938, "vocabService": "clipc_skos_vocab", "uri": "http://vocab.ceda.ac.uk/collection/cci/platformProg/plat_envisat_prog", "resolvedTerm": "Environmental Satellite" }, { "ob_id": 10985, "vocabService": "clipc_skos_vocab", "uri": 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"Level 3" } ], "identifier_set": [], "observationcollection_set": [ { "ob_id": 13340, "uuid": "8e1662bfe93d4720adfcfd8925862bad", "short_code": "coll", "title": "ESA Aerosol Climate Change Initiative (CCI) Dataset Collection", "abstract": "Datasets of aerosol products produced by the Aerosol project within the ESA Climate Change Initiative (CCI). \r\n\r\nThe primary products produced in the aerosol_cci project are level 2 (daily 10km and 50km pixel products) and level 3 (aggregated monthly gridded datasets) multi-spectral AOD and associated probabilities of pre-defined aerosol types for a number of European satellite instruments (ATSR-2, AATSR, MERIS, POLDER, GOME, SCIAMACHY, OMI, GOME-2, AVHRR/3); stratospheric aerosols are observed with GOMOS (and tested for SCIAMACHY)." }, { "ob_id": 30128, "uuid": "7fe9f59731ab47b6a20e792e0cba4641", "short_code": "coll", "title": "National Centre for Earth Observation (NCEO) partnered datasets", "abstract": "The National Centre for Earth Observation (NCEO) has a proud tradition of being involved with some of the most successful international collaborations in the Earth observation. This Collection contains dataset generated and/or archived with the support of NCEO resource or scientific expertise. Some notable collaboration which generated data within this collection are as follows:\r\n\r\nThe European Space Agency (ESA)'s Climate Change Initiative (CCI) program. The program goal is to provide stable, long-term, satellite-based Essential Climate Variable (ECV) data products for climate modelers and researchers.\r\n\r\nThe EUSTACE (EU Surface Temperature for All Corners of Earth) project is produced publicly available daily estimates of surface air temperature since 1850 across the globe for the first time by combining surface and satellite data using novel statistical techniques.\r\n\r\nFIDUCEO has created new climate datasets from Earth Observations with a rigorous treatment of uncertainty informed by the discipline of metrology. This response to the need for enhanced credibility for climate data, to support rigorous science, decision-making and climate services. The project approach was to develop methodologies for generating Fundamental Climate Data Records (FCDRs) and Climate Data Records (CDRs) that are widely applicable and metrologically rigorous. \r\n\r\nThe “BACI” project translates satellite data streams into novel “essential biodiversity variables” by integrating ground-based observations. The trans-disciplinary project offers new insights into the functioning and state of ecosystems and biodiversity. 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stratospheric aerosols are observed with GOMOS (and tested for SCIAMACHY)." }, { "ob_id": 30128, "uuid": "7fe9f59731ab47b6a20e792e0cba4641", "short_code": "coll", "title": "National Centre for Earth Observation (NCEO) partnered datasets", "abstract": "The National Centre for Earth Observation (NCEO) has a proud tradition of being involved with some of the most successful international collaborations in the Earth observation. This Collection contains dataset generated and/or archived with the support of NCEO resource or scientific expertise. Some notable collaboration which generated data within this collection are as follows:\r\n\r\nThe European Space Agency (ESA)'s Climate Change Initiative (CCI) program. The program goal is to provide stable, long-term, satellite-based Essential Climate Variable (ECV) data products for climate modelers and researchers.\r\n\r\nThe EUSTACE (EU Surface Temperature for All Corners of Earth) project is produced publicly available daily estimates of surface air temperature since 1850 across the globe for the first time by combining surface and satellite data using novel statistical techniques.\r\n\r\nFIDUCEO has created new climate datasets from Earth Observations with a rigorous treatment of uncertainty informed by the discipline of metrology. This response to the need for enhanced credibility for climate data, to support rigorous science, decision-making and climate services. The project approach was to develop methodologies for generating Fundamental Climate Data Records (FCDRs) and Climate Data Records (CDRs) that are widely applicable and metrologically rigorous. \r\n\r\nThe “BACI” project translates satellite data streams into novel “essential biodiversity variables” by integrating ground-based observations. The trans-disciplinary project offers new insights into the functioning and state of ecosystems and biodiversity. BACI enables the user community to detect abrupt and transient changes of ecosystems and quantify the implications for regional biodiversity.\r\n\r\nThe UK Natural Environment Research Council has established a knowledge transfer network called NCAVEO (Network for Calibration and Validation of EO data - NCAVEO) which has as its aim the promotion and support of methodologies based upon quantitative, traceable measurements in Earth observation. \r\n\r\nThe Geostationary Earth Radiation Budget 1 & 2 instruments (GERB-1 and GERB-2) make accurate measurements of the Earth Radiation Budget. They are specifically designed to be mounted on a geostationary satellite and are carried onboard the Meteosat Second Generation satellites operated by EUMETSAT. They were produced by a European consortium led by the UK (NERC) together with Belgium, Italy, and EUMETSAT, with funding from national agencies.\r\n\r\nGloboLakes analysed 20 years of data from more than 1000 large lakes across the globe to determine 'what controls the differential sensitivity of lakes to environmental perturbation'. This was an ambitious project that was only possible by bringing together a consortium of scientists with complementary skills. These include expertise in remote sensing of freshwaters and processing large volumes of satellite images, collation and analysis of large-scale environmental data, environmental statistics and the assessment of data uncertainty, freshwater ecology and mechanisms of environmental change and the ability to produce lake models to forecast future lake conditions.\r\n\r\nThis SPEI collaboration consists of high spatial resolution Standardized Precipitation-Evapotranspiration Index (SPEI) drought dataset over the whole of Africa at different time scales from 1 month to 48 months. It is calculated based on precipitation estimates from the satellite-based Climate Hazards Group InfraRed Precipitation with Station data (CHIRPS) and potential evaporation estimates by the Global Land Evaporation Amsterdam Model (GLEAM)." } ], "responsiblepartyinfo_set": [ 71995, 71996, 71998, 75191, 104912, 105128, 105306, 71999, 71997, 71994 ], "onlineresource_set": [ 15183, 15184, 15185, 15187, 15186, 15188, 15883, 16493 ] }, { "ob_id": 19147, "uuid": "07b007d59e83414baae0bf54e0b31483", "title": "RAPID: HADCM3 meteorology ans ocean model outputs", "abstract": "\"Improving our ability to predict rapid changes in the El Nino Southern Oscillation climatic phenomenon\" project, which was a Natural Environment Research Council (NERC) RAPID Climate Change Research Programme project (Round 1 - NER/T/S/2002/00443 - Duration 1 Jan 2004 - 30 Sep 2007) led by Prof Alexander Tudhope of the University of Edinburgh, with co-investigators at the Scottish Universities Environment Research Centre, Bigelow Laboratory for Ocean Sciences, and the University of Reading. \r\n\r\nThis dataset collection contains meteorology and ocean model outputs from the Hadley Centre Coupled Model, version 3 (HadCM3) model.\r\n\r\nThe objective was to use a combination of palaeoclimate reconstruction from annually-banded corals and the fully coupled HadCM3 atmosphere-ocean general circulation model to develop an understanding of the controls on variability in the strength and frequency of ENSO, and to improve our ability to predict the likelihood of future rapid changes in this important element of the climate system. To achieve this, we targeted three periods:0-2.5 ka: Representative of near-modern climate forcing; revealing the internal variability in the system.6-9 ka: a period of weak or absent ENSO, and different orbital forcing; a test of the model's ability to capture externally-forced change in ENSO.200-2100 AD: by using the palaeo periods to test and optimise model parameterisation, produce a new, improved, prediction of ENSO variability in a warming world.\r\n\r\nRapid Climate Change (RAPID) was a £20 million, six-year (2001-2007) programme for the Natural Environment Research Council. The programme aimed to improve the ability to quantify the probability and magnitude of future rapid change in climate, with a main (but not exclusive) focus on the role of the Atlantic Ocean's Thermohaline Circulation.", "creationDate": "2022-07-22T09:15:57.183554", "lastUpdatedDate": "2022-07-22T09:15:57.272326", "latestDataUpdateTime": "2024-03-09T03:02:32", "updateFrequency": "notPlanned", "dataLineage": "Data provided by contributing modelling centres to the BADC for archiving.", "removedDataReason": "", "keywords": "RAPID, Climate change, Atlantic Ocean's Thermohaline Circulation", "publicationState": "published", "nonGeographicFlag": false, "dontHarvestFromProjects": false, "language": "English", "resolution": "", "status": "completed", "dataPublishedTime": "2008-12-10T10:58:32", "doiPublishedTime": null, "removedDataTime": null, "geographicExtent": { "ob_id": 1, "bboxName": "", "eastBoundLongitude": 180.0, "westBoundLongitude": -180.0, "southBoundLatitude": -90.0, "northBoundLatitude": 90.0 }, "verticalExtent": null, "result_field": { "ob_id": 19148, "dataPath": "/badc/rapid/data/Gregory_Rapid1_Round2/hadcm3", "oldDataPath": [], "storageLocation": "internal", "storageStatus": "online", "volume": 103473305937, "numberOfFiles": 841, "fileFormat": "Data are netCDF formatted" }, "timePeriod": { "ob_id": 5011, "startTime": "1990-01-01T00:00:00", "endTime": "2091-01-01T00:00:00" }, "resultQuality": { "ob_id": 1622, "explanation": "Not known.", "passesTest": true, "resultTitle": "CEDA Data Quality Statement", "date": "2014-09-21" }, "validTimePeriod": null, "procedureAcquisition": null, "procedureComputation": { "ob_id": 5533, "uuid": "18be7c4d3b0044f689b57be26990f5ac", "short_code": "comp", "title": "Hadley Centre Coupled Model 3 (HadCM3) deployed on Met Office Hadley Centre Computers", "abstract": "This computation involved: Hadley Centre Coupled Model 3 (HadCM3) deployed on Met Office Hadley Centre Computers." }, "procedureCompositeProcess": null, "imageDetails": [ 23 ], "discoveryKeywords": [ { "ob_id": 1138, "name": "NDGO0003" } ], "permissions": [ { "ob_id": 2526, "accessConstraints": null, "accessCategory": "public", "accessRoles": null, "label": "public: None group", "licence": { "ob_id": 3, "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/", "licenceClassifications": [ { "ob_id": 3, "classification": "any" } ] } } ], "projects": [ { "ob_id": 19145, "uuid": "a4672c7e4db6412c800aaa78c84254e5", "short_code": "proj", "title": "RAPID Round 2: Understanding uncertainty in simulations of THC-related rapid climate change", "abstract": "Rapid Climate Change (RAPID) was a £20 million, six-year (2001-2007) programme for the Natural Environment Research Council. 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The spread of model results basically reflects limitations in current understanding of how the large-scale climate system operates. The aim of this project was to identify which are the most important aspects of that uncertainty by making comparisons of the responses simulated by a range of climate models. 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However, such models give widely different results for some important aspects of climate change, thus limiting our ability to make practically useful projections. One such aspect is changes that may happen in the Atlantic Ocean thermohaline circulation, often referred to as the Gulf Stream. This circulation transports a great deal of heat northwards. If it weakened, future warming in Europe in particular could be reduced or possibly reversed. The spread of model results basically reflects limitations in current understanding of how the large-scale climate system operates. The aim of this project was to identify which are the most important aspects of that uncertainty by making comparisons of the responses simulated by a range of climate models. The results were intended to help improve the models by focusing attention on the aspects which require further theoretical or observational study.\r\n\r\nThis dataset collection contains meteorology and ocean model outputs.\r\n\r\nRapid Climate Change (RAPID) was a £20 million, six-year (2001-2007) programme for the Natural Environment Research Council. The programme aimed to improve the ability to quantify the probability and magnitude of future rapid change in climate, with a main (but not exclusive) focus on the role of the Atlantic Ocean's Thermohaline Circulation.\r\n" } ], "responsiblepartyinfo_set": [ 72033, 72034, 72027, 72028, 72030, 72031, 72032, 72029, 72461 ], "onlineresource_set": [] }, { "ob_id": 19149, "uuid": "4f655cfbf48d43a2aa8367c629cf3de5", "title": "RAPID: GENIE-1 EMIC meteorology and ocean model outputs", "abstract": "\"Improving our ability to predict rapid changes in the El Nino Southern Oscillation climatic phenomenon\" project, which was a Natural Environment Research Council (NERC) RAPID Climate Change Research Programme project (Round 1 - NER/T/S/2002/00443 - Duration 1 Jan 2004 - 30 Sep 2007) led by Prof Alexander Tudhope of the University of Edinburgh, with co-investigators at the Scottish Universities Environment Research Centre, Bigelow Laboratory for Ocean Sciences, and the University of Reading. \r\n\r\nThis dataset collection contains meteorology and ocean model outputs from the GENIE-1 EMIC model.\r\n\r\nThe objective was to use a combination of palaeoclimate reconstruction from annually-banded corals and the fully coupled HadCM3 atmosphere-ocean general circulation model to develop an understanding of the controls on variability in the strength and frequency of ENSO, and to improve our ability to predict the likelihood of future rapid changes in this important element of the climate system. 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The programme aimed to improve the ability to quantify the probability and magnitude of future rapid change in climate, with a main (but not exclusive) focus on the role of the Atlantic Ocean's Thermohaline Circulation.\r\n\r\nThe main tools that are used for making projections of climate change in the coming century resulting from greenhouse-gas and other emissions are detailed coupled three-dimensional models of the atmosphere and ocean. However, such models give widely different results for some important aspects of climate change, thus limiting our ability to make practically useful projections. One such aspect is changes that may happen in the Atlantic Ocean thermohaline circulation, often referred to as the Gulf Stream. This circulation transports a great deal of heat northwards. If it weakened, future warming in Europe in particular could be reduced or possibly reversed. 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The programme aimed to improve the ability to quantify the probability and magnitude of future rapid change in climate, with a main (but not exclusive) focus on the role of the Atlantic Ocean's Thermohaline Circulation.", "creationDate": "2022-07-22T09:15:57.183554", "lastUpdatedDate": "2022-07-22T09:15:57.272326", "latestDataUpdateTime": "2024-03-09T03:16:01", "updateFrequency": "notPlanned", "dataLineage": "Data provided by contributing modelling centres to the BADC for archiving.", "removedDataReason": "", "keywords": "RAPID, Climate change, Atlantic Ocean's Thermohaline Circulation", "publicationState": "published", "nonGeographicFlag": false, "dontHarvestFromProjects": false, "language": "English", "resolution": "", "status": "completed", "dataPublishedTime": "2008-12-10T10:53:53", "doiPublishedTime": null, "removedDataTime": null, "geographicExtent": { "ob_id": 1, "bboxName": "", "eastBoundLongitude": 180.0, "westBoundLongitude": -180.0, "southBoundLatitude": -90.0, "northBoundLatitude": 90.0 }, "verticalExtent": null, "result_field": { "ob_id": 19158, "dataPath": "/badc/rapid/data/Gregory_Rapid1_Round2/famous/", "oldDataPath": [], "storageLocation": "internal", "storageStatus": "online", "volume": 76459807577, "numberOfFiles": 817, "fileFormat": "Data are netCDF formatted" }, "timePeriod": { "ob_id": 5011, "startTime": "1990-01-01T00:00:00", "endTime": "2091-01-01T00:00:00" }, "resultQuality": { "ob_id": 1622, "explanation": "Not known.", "passesTest": true, "resultTitle": "CEDA Data Quality Statement", "date": "2014-09-21" }, "validTimePeriod": null, "procedureAcquisition": null, "procedureComputation": { "ob_id": 19068, "uuid": "77c4348fc49c4fcebfa201c6185a29fa", "short_code": "comp", "title": "FAMOUS Climate model", "abstract": "FAMOUS (FAst Met Office/UK Universities Simulator) is an ocean-atmosphere general circulation model of low resolution, based on version 4.5 of the UK MetOffice Unified Model." }, "procedureCompositeProcess": null, "imageDetails": [ 23 ], "discoveryKeywords": [ { "ob_id": 1138, "name": "NDGO0003" } ], "permissions": [ { "ob_id": 2526, "accessConstraints": null, "accessCategory": "public", "accessRoles": null, "label": "public: None group", "licence": { "ob_id": 3, "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/", "licenceClassifications": [ { "ob_id": 3, "classification": "any" } ] } } ], "projects": [ { "ob_id": 19145, "uuid": "a4672c7e4db6412c800aaa78c84254e5", "short_code": "proj", "title": "RAPID Round 2: Understanding uncertainty in simulations of THC-related rapid climate change", "abstract": "Rapid Climate Change (RAPID) was a £20 million, six-year (2001-2007) programme for the Natural Environment Research Council. The programme aimed to improve the ability to quantify the probability and magnitude of future rapid change in climate, with a main (but not exclusive) focus on the role of the Atlantic Ocean's Thermohaline Circulation.\r\n\r\nThe main tools that are used for making projections of climate change in the coming century resulting from greenhouse-gas and other emissions are detailed coupled three-dimensional models of the atmosphere and ocean. However, such models give widely different results for some important aspects of climate change, thus limiting our ability to make practically useful projections. One such aspect is changes that may happen in the Atlantic Ocean thermohaline circulation, often referred to as the Gulf Stream. This circulation transports a great deal of heat northwards. If it weakened, future warming in Europe in particular could be reduced or possibly reversed. The spread of model results basically reflects limitations in current understanding of how the large-scale climate system operates. The aim of this project was to identify which are the most important aspects of that uncertainty by making comparisons of the responses simulated by a range of climate models. 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However, such models give widely different results for some important aspects of climate change, thus limiting our ability to make practically useful projections. One such aspect is changes that may happen in the Atlantic Ocean thermohaline circulation, often referred to as the Gulf Stream. This circulation transports a great deal of heat northwards. If it weakened, future warming in Europe in particular could be reduced or possibly reversed. The spread of model results basically reflects limitations in current understanding of how the large-scale climate system operates. The aim of this project was to identify which are the most important aspects of that uncertainty by making comparisons of the responses simulated by a range of climate models. The results were intended to help improve the models by focusing attention on the aspects which require further theoretical or observational study.\r\n\r\nThis dataset collection contains meteorology and ocean model outputs.\r\n\r\nRapid Climate Change (RAPID) was a £20 million, six-year (2001-2007) programme for the Natural Environment Research Council. The programme aimed to improve the ability to quantify the probability and magnitude of future rapid change in climate, with a main (but not exclusive) focus on the role of the Atlantic Ocean's Thermohaline Circulation.\r\n" } ], "responsiblepartyinfo_set": [ 72077, 72070, 72071, 72072, 72074, 72075, 72076, 72073, 72464 ], "onlineresource_set": [] }, { "ob_id": 19159, "uuid": "8201bebead8e48c2ad0aa74eab3e0c7a", "title": "RAPID: CHIME meteorology and ocean model outputs", "abstract": "\"Improving our ability to predict rapid changes in the El Nino Southern Oscillation climatic phenomenon\" project, which was a Natural Environment Research Council (NERC) RAPID Climate Change Research Programme project (Round 1 - NER/T/S/2002/00443 - Duration 1 Jan 2004 - 30 Sep 2007) led by Prof Alexander Tudhope of the University of Edinburgh, with co-investigators at the Scottish Universities Environment Research Centre, Bigelow Laboratory for Ocean Sciences, and the University of Reading. \r\n\r\nThis dataset collection contains meteorology and ocean model outputs from the Coupled Hadley-Isopycnic Model Experiment (CHIME).\r\n\r\nThe objective was to use a combination of palaeoclimate reconstruction from annually-banded corals and the fully coupled HadCM3 atmosphere-ocean general circulation model to develop an understanding of the controls on variability in the strength and frequency of ENSO, and to improve our ability to predict the likelihood of future rapid changes in this important element of the climate system. To achieve this, we targeted three periods:0-2.5 ka: Representative of near-modern climate forcing; revealing the internal variability in the system.6-9 ka: a period of weak or absent ENSO, and different orbital forcing; a test of the model's ability to capture externally-forced change in ENSO.200-2100 AD: by using the palaeo periods to test and optimise model parameterisation, produce a new, improved, prediction of ENSO variability in a warming world.\r\n\r\nRapid Climate Change (RAPID) was a £20 million, six-year (2001-2007) programme for the Natural Environment Research Council. The programme aimed to improve the ability to quantify the probability and magnitude of future rapid change in climate, with a main (but not exclusive) focus on the role of the Atlantic Ocean's Thermohaline Circulation.", "creationDate": "2022-07-22T09:15:57.183554", "lastUpdatedDate": "2022-07-22T09:15:57.272326", "latestDataUpdateTime": "2024-03-09T03:16:02", "updateFrequency": "notPlanned", "dataLineage": "Data provided by contributing modelling centres to the BADC for archiving.", "removedDataReason": "", "keywords": "RAPID, Climate change, Atlantic Ocean's Thermohaline Circulation", "publicationState": "published", "nonGeographicFlag": false, "dontHarvestFromProjects": false, "language": "English", "resolution": "", "status": "completed", "dataPublishedTime": "2008-12-10T09:51:38", "doiPublishedTime": null, "removedDataTime": null, "geographicExtent": { "ob_id": 1, "bboxName": "", "eastBoundLongitude": 180.0, "westBoundLongitude": -180.0, "southBoundLatitude": -90.0, "northBoundLatitude": 90.0 }, "verticalExtent": null, "result_field": { "ob_id": 19160, "dataPath": "/badc/rapid/data/Gregory_Rapid1_Round2/chime/", "oldDataPath": [], "storageLocation": "internal", "storageStatus": "online", "volume": 1168568447192, "numberOfFiles": 18564, "fileFormat": "Data are netCDF formatted" }, "timePeriod": { "ob_id": 5011, "startTime": "1990-01-01T00:00:00", "endTime": "2091-01-01T00:00:00" }, "resultQuality": { "ob_id": 1622, "explanation": "Not known.", "passesTest": true, "resultTitle": "CEDA Data Quality Statement", "date": "2014-09-21" }, "validTimePeriod": null, "procedureAcquisition": null, "procedureComputation": { "ob_id": 19161, "uuid": "b6695dd5458a4847a2295777ad24d688", "short_code": "comp", "title": "CHIME model", "abstract": "The Coupled Hadley-Isopycnic Model Experiment (CHIME). Ocean model has same horizontal resolution as in HadCM3, but uses HYCOM (Hybrid Coordinate Ocean Model) instead of HadCM3’s constant-depth coordinate model. Allows detailed examination examination of the influence influence of the vertical vertical coordinate coordinate of the ocean component in a coupled system." }, "procedureCompositeProcess": null, "imageDetails": [ 23 ], "discoveryKeywords": [ { "ob_id": 1138, "name": "NDGO0003" } ], "permissions": [ { "ob_id": 2526, "accessConstraints": null, "accessCategory": "public", "accessRoles": null, "label": "public: None group", "licence": { "ob_id": 3, "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/", "licenceClassifications": [ { "ob_id": 3, "classification": "any" } ] } } ], "projects": [ { "ob_id": 19145, "uuid": "a4672c7e4db6412c800aaa78c84254e5", "short_code": "proj", "title": "RAPID Round 2: Understanding uncertainty in simulations of THC-related rapid climate change", "abstract": "Rapid Climate Change (RAPID) was a £20 million, six-year (2001-2007) programme for the Natural Environment Research Council. 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The spread of model results basically reflects limitations in current understanding of how the large-scale climate system operates. The aim of this project was to identify which are the most important aspects of that uncertainty by making comparisons of the responses simulated by a range of climate models. 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However, such models give widely different results for some important aspects of climate change, thus limiting our ability to make practically useful projections. One such aspect is changes that may happen in the Atlantic Ocean thermohaline circulation, often referred to as the Gulf Stream. This circulation transports a great deal of heat northwards. If it weakened, future warming in Europe in particular could be reduced or possibly reversed. The spread of model results basically reflects limitations in current understanding of how the large-scale climate system operates. The aim of this project was to identify which are the most important aspects of that uncertainty by making comparisons of the responses simulated by a range of climate models. The results were intended to help improve the models by focusing attention on the aspects which require further theoretical or observational study.\r\n\r\nThis dataset collection contains meteorology and ocean model outputs.\r\n\r\nRapid Climate Change (RAPID) was a £20 million, six-year (2001-2007) programme for the Natural Environment Research Council. The programme aimed to improve the ability to quantify the probability and magnitude of future rapid change in climate, with a main (but not exclusive) focus on the role of the Atlantic Ocean's Thermohaline Circulation.\r\n" } ], "responsiblepartyinfo_set": [ 72083, 72078, 72079, 72080, 72084, 72082, 72085, 72081, 72465 ], "onlineresource_set": [] }, { "ob_id": 19164, "uuid": "0291fc69526e4d8699737d7f67c60177", "title": "RAPID: ORCA1 model output data (1958-2004)", "abstract": "The Assimilation in ocean and coupled models to determine the thermohaline circulation\" project was a Natural Environment Research Council (NERC) RAPID Climate Change Research Programme project (Round 2 - NE/C509058/1 - Duration 1 Sep 2005 - 30 Sep 2009) led by Prof Keith Haines of the University of Reading, with co-investigators at the National Oceanography Centre. \r\n\r\nThis dataset collection contains Atlantic Ocean Thermohaline Circulation ORCA1 model data.", "creationDate": "2022-07-22T09:15:57.183554", "lastUpdatedDate": "2022-07-22T09:15:57.272326", "latestDataUpdateTime": "2024-03-09T03:15:58", "updateFrequency": "notPlanned", "dataLineage": "Data provided by Greg Smith at ESSC.", "removedDataReason": "", "keywords": "RAPID, Climate change, Atlantic Ocean's Thermohaline Circulation", "publicationState": "published", "nonGeographicFlag": false, "dontHarvestFromProjects": false, "language": "English", "resolution": "", "status": "completed", "dataPublishedTime": "2008-12-10T10:59:22", "doiPublishedTime": null, "removedDataTime": null, "geographicExtent": { "ob_id": 529, "bboxName": "Global (-180 to 180)", "eastBoundLongitude": 180.0, "westBoundLongitude": -180.0, "southBoundLatitude": -90.0, "northBoundLatitude": 90.0 }, "verticalExtent": null, "result_field": { "ob_id": 19165, "dataPath": "/badc/rapid/data/Haines_Rapid1_Round2/NEMO/ORCA1", "oldDataPath": [], "storageLocation": "internal", "storageStatus": "online", "volume": 819846288072, "numberOfFiles": 50622, "fileFormat": "Data are netCDF formatted" }, "timePeriod": { "ob_id": 5019, "startTime": "1958-01-01T00:00:00", "endTime": "2004-12-31T23:59:59" }, "resultQuality": { "ob_id": 1778, "explanation": "Not known.", "passesTest": true, "resultTitle": "CEDA Data Quality Statement", "date": "2014-09-21" }, "validTimePeriod": null, "procedureAcquisition": null, "procedureComputation": { "ob_id": 1293, "uuid": "9adfa03544a443a8ba1f4a3aba380850", "short_code": "comp", "title": "University of Reading NEMO coupled ice-ocean model v3.2", "abstract": "This computation involved: Reading University Ocean Reanalysis Software deployed on Reading University computer. Reading University developed ocean reanalysis software which uses the NEMOv3.2 ocean model in configuration ORCA025_LIM (1/4 deg by 75 vertical levels). The model is forced with ECMWF ERA-Interim atmospheric reanalysis without corrections for radiation and precipitation and bulk fluxes calculated as in Large and Yeager (2004). The vertical grid has 75 levels with partial steps at the bottom. The data assimilation methodology is similar to what is currently employed in the UK Met Office operational FOAM - NEMO system (Storkey et al., 2010). It is an OI-type scheme with assimilation increments calculated using a first-guess-at-appropriate- time (FGAT) scheme every 5 days and introduced evenly over the period in an incremental analysis update (IAU) step. UR025.4 assimilates in situ and satellite-based SSTs, altimeter SLA from AVISO/CLS using the Rio et al. (2005) mean dynamic topography (MDT), in situ temperature and salinity profile observations obtained from the UK Met Office ENACT/ENSEMBLES (EN3_v2a_NoCWT_LevitusXBTMBT_ Corr) data set, which includes bias corrections for XBT and MDT data, and satellite-based sea ice concentrations from the EUMETSAT Ocean Sea Ice Satellite Application Facility (OSI-SAF).\r\n\r\n" }, "procedureCompositeProcess": null, "imageDetails": [ 23 ], "discoveryKeywords": [ { "ob_id": 1138, "name": "NDGO0003" } ], "permissions": [ { "ob_id": 2526, "accessConstraints": null, "accessCategory": "public", "accessRoles": null, "label": "public: None group", "licence": { "ob_id": 3, "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/", "licenceClassifications": [ { "ob_id": 3, "classification": "any" } ] } } ], "projects": [ { "ob_id": 13397, "uuid": "3e02c3fc68f24b51afee68e954d62dc7", "short_code": "proj", "title": "RAPID Joint International A0 Project: To what extent was the Little Ice Age a result of a change in the THC?", "abstract": "Rapid Climate Change (RAPID) was a £20 million, six-year (2001-2007) programme for the Natural Environment Research Council. The programme aimed to improve the ability to quantify the probability and magnitude of future rapid change in climate, with a main (but not exclusive) focus on the role of the Atlantic Ocean's Thermohaline Circulation.\r\n\r\nFor a full understanding of the global climate system, it is imperative to integrate research on empirical climate reconstruction with physical modelling studies of the Earth's climate, using numerical models of varying complexity to address important questions about the attribution of past and future climate changes to specific natural and anthropogenic factors. The focus of this project was on testing various hypotheses about the possible causes of the Little Ice Age. A carefully-designed set of model experiments (incorporating novel methods of assimilating information on climate time scales) were proposed, with the outputs assessed through comparison against empirical palaeoclimate evidence for climate variations over the past millennium. Specifically exploreed whether the Little Ice Age climate could have been generated by one or more of the following factors: a weakening of the Atlantic thermohaline circulation; the persistence of a generally negative North Atlantic Oscillation; or reduced radiative forcing (by increased volcanic activity, reduced solar insolation and lower greenhouse gas concentrations relative to the present). " } ], "inspireTheme": [], "topicCategory": [], "phenomena": [ 18120, 18122, 18123, 18124, 18125, 50632, 50633, 50636, 52949, 52960, 52977, 61001, 61002, 61003, 61004, 61005, 61006, 61007, 61008, 61009, 61010, 61011, 61012, 61013, 61014, 61015, 61016, 61017, 61018, 61019, 61020, 61021, 61022, 61023, 61024, 61025, 61026, 61027, 61028, 61029, 61030, 61031, 61032, 61033, 61034, 61035, 61036, 61037, 61038, 61039, 61040, 61041, 61042, 61043, 61044, 61045, 61046, 61047, 61048, 61049, 61050, 61051, 61052, 61053, 61054, 61055, 61056, 61057, 61058, 61059, 61060, 61061, 61062, 61063, 61064, 61065 ], "vocabularyKeywords": [], "identifier_set": [], "observationcollection_set": [ { "ob_id": 19146, "uuid": "6ceb72ed91df42f69050a2a0fa18ea55", "short_code": "coll", "title": "RAPID Understanding uncertainty in simulations of THC-related rapid climate change:", "abstract": "The main tools that are used for making projections of climate change in the coming century resulting from greenhouse-gas and other emissions are detailed coupled three-dimensional models of the atmosphere and ocean. However, such models give widely different results for some important aspects of climate change, thus limiting our ability to make practically useful projections. One such aspect is changes that may happen in the Atlantic Ocean thermohaline circulation, often referred to as the Gulf Stream. This circulation transports a great deal of heat northwards. If it weakened, future warming in Europe in particular could be reduced or possibly reversed. The spread of model results basically reflects limitations in current understanding of how the large-scale climate system operates. The aim of this project was to identify which are the most important aspects of that uncertainty by making comparisons of the responses simulated by a range of climate models. The results were intended to help improve the models by focusing attention on the aspects which require further theoretical or observational study.\r\n\r\nThis dataset collection contains meteorology and ocean model outputs.\r\n\r\nRapid Climate Change (RAPID) was a £20 million, six-year (2001-2007) programme for the Natural Environment Research Council. The programme aimed to improve the ability to quantify the probability and magnitude of future rapid change in climate, with a main (but not exclusive) focus on the role of the Atlantic Ocean's Thermohaline Circulation.\r\n" }, { "ob_id": 6739, "uuid": "e9f6c496648f98090e1e1b5d0ab7fd05", "short_code": "coll", "title": "RAPID Assimilation in Ocean and Coupled Models to Determine the Thermohaline Circulation: Numerical circulation model data", "abstract": "\"The Assimilation in ocean and coupled models to determine the thermohaline circulation\" project was a Natural Environment Research Council (NERC) RAPID Climate Change Research Programme project (Round 2 - NE/C509058/1 - Duration 1 Sep 2005 - 30 Sep 2009) led by Prof Keith Haines of the University of Reading, with co-investigators at the National Oceanography Centre. \r\n\r\nThis dataset collection contains Atlantic Ocean Thermohaline Circulation (ATOC) model measurements.\r\n\r\nTo make the best use of the historical research ship records as well as new observations from autonomous ocean profiling floats and special observing programs such as Rapid climate change, it was proposed to assimilate all of the available data from the past 40 years into a high quality ocean circulation model that can represent complete fields of ocean properties. In this way derived quantities such as the north-south mass and heat transports which are vital to understanding the oceans role in controlling climate, could be determined. The project also put into context the various timeseries of observations that have been compiled from local regions which suggest that important changes in ocean circulation and transports have been ongoing in the past decades. These timeseries have been put into a basin scale and global scale context of ongoing change. The program determined the relationship between hydrographic signals in different parts of the ocean basins (particularly the N Atlantic). The program provided a method for assimilating data from the thermohaline monitoring arrays into an ocean model that could then be used as part of a coupled climate model for multi-annual climate prediction.\r\n\r\nRapid Climate Change (RAPID) was a £20 million, six-year (2001-2007) programme for the Natural Environment Research Council. The programme aimed to improve the ability to quantify the probability and magnitude of future rapid change in climate, with a main (but not exclusive) focus on the role of the Atlantic Ocean's Thermohaline Circulation.\r\n" } ], "responsiblepartyinfo_set": [ 72098, 72099, 72100, 72102, 72103, 72104, 72105, 72101, 72468 ], "onlineresource_set": [] }, { "ob_id": 19169, "uuid": "4df81219514b4289a57b58fe25e572dd", "title": "RAPID: MITgcm ocean model basin experiment raw outputs (2003-2006)", "abstract": "\"The Circulation, overflow, and deep convection studies in the Nordic Seas using tracers and models\" project was a Natural Environment Research Council (NERC) RAPID Climate Change Research Programme project (Round 1 - NER/T/S/2002/00446 - Duration 1 Aug 2003 - 31 Oct 2006 ) led by Prof Andrew Watson of the University of East Anglia, also with co-investigators at the University of East Anglia. Dataset contains sources of water in the Greenland-Scotland overflows: recent tracer release and transient tracer observations, as well as the initiation of convection and its relation to submesoscale hydrodynamics. \r\n\r\nThis dataset contains MIT General Circulation Model (MITgcm) ocean model basin experiment outputs.", "creationDate": "2022-07-22T09:15:57.183554", "lastUpdatedDate": "2022-07-22T09:15:57.272326", "latestDataUpdateTime": "2020-06-05T19:54:07", "updateFrequency": "notPlanned", "dataLineage": "Data provided as is by Kevin Oliver while at UEA.", "removedDataReason": "", "keywords": "RAPID, Climate change, Nordic Sea", "publicationState": "published", "nonGeographicFlag": false, "dontHarvestFromProjects": false, "language": "English", "resolution": "", "status": "completed", "dataPublishedTime": "2008-12-10T11:31:15", "doiPublishedTime": null, "removedDataTime": null, "geographicExtent": { "ob_id": 1, "bboxName": "", "eastBoundLongitude": 180.0, "westBoundLongitude": -180.0, "southBoundLatitude": -90.0, "northBoundLatitude": 90.0 }, "verticalExtent": null, "result_field": { "ob_id": 19170, "dataPath": "/badc/rapid/data/Watson_Rapid1_Round1/BasinExperiments", "oldDataPath": [], "storageLocation": "internal", "storageStatus": "online", "volume": 18476251282, "numberOfFiles": 7188, "fileFormat": "Data are binary formatted" }, "timePeriod": { "ob_id": 776, "startTime": "2003-07-31T23:00:00", "endTime": "2006-10-31T00:00:00" }, "resultQuality": { "ob_id": 684, "explanation": "Not known.", "passesTest": true, "resultTitle": "CEDA Data Quality Statement", "date": "2014-09-21" }, "validTimePeriod": null, "procedureAcquisition": null, "procedureComputation": { "ob_id": 2870, "uuid": "ea1b802787ae4d868cac917508b4dec9", "short_code": "comp", "title": "MIT General Circulation Model (MITgcm) run by Climate Research Unit (CRU) at UEA", "abstract": "This computation involved: MIT General Circulation Model (MITgcm) deployed on Climate Research Unit (CRU) at UEA. \r\nMITgcm (MIT General Circulation Model) is a numerical model designed for study of the atmosphere, ocean, and climate. A novel feature of MITgcm is its ability to simulate, using one basic algorithm, both atmospheric and oceanographic flows at both small and large scales. Its adjoint capability enables it to be applied to parameter and state estimation problems. The non-hydrostatic capability allows the model to simulate overturning and mixing processes. When used in conjunction with the finite volume representation of topography (known as shaved-cells or partial steps using the method of cut cells) the model provides a flexible tool for studying mixing process and dynamical interactions with steep topography.\r\n\r\nMITgcm can be used to study both atmospheric and oceanic circulation. It has a non-hydrostatic capability and supports horizontal orthogonal curvilinear coordinates. It has finite volume treatment of topography and supports a wide range of physical parameterizations. It has tangent linear and adjoint code maintained alongside the forward model, and can run on your pc, workstation or parallel computer using flexible domain decomposition." }, "procedureCompositeProcess": null, "imageDetails": [ 23 ], "discoveryKeywords": [ { "ob_id": 1138, "name": "NDGO0003" } ], "permissions": [ { "ob_id": 2526, "accessConstraints": null, "accessCategory": "public", "accessRoles": null, "label": "public: None group", "licence": { "ob_id": 3, "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/", "licenceClassifications": [ { "ob_id": 3, "classification": "any" } ] } } ], "projects": [ { "ob_id": 19166, "uuid": "f5ddf65bff5744bc9445b3c8dc350375", "short_code": "proj", "title": "RAPID Round 1: Circulation overflow and deep convection studies in the Nordic Seas using tracers and models", "abstract": "Rapid Climate Change (RAPID) was a £20 million, six-year (2001-2007) programme for the Natural Environment Research Council. The programme aimed to improve the ability to quantify the probability and magnitude of future rapid change in climate, with a main (but not exclusive) focus on the role of the Atlantic Ocean's Thermohaline Circulation.\r\n\r\nThe project investigated two aspects of the Nordic Seas circulation of importance to the North Atlantic meridional overturning circulation (MOC): (1) Sources of water in the Greenland-Scotland overflows: recent tracer release and transient tracer observations were used to constrain inverse models of the sources of Denmark Straits and Faroe-Bank channel overflow waters. (2) The initiation of convection and its relation to submesoscale hydrodynamics: very high-resolution non-hydrostatic models for the Central Greenland Sea were used to model recent observations, which show convection to be intimately related to local sub-mesoscale structure.: The objective was to develop improved descriptions of convection for use in OGCMs, to more accurately describe how the sinking branch of the MOC will be affected by changes in forcing." } ], "inspireTheme": [], "topicCategory": [], "phenomena": [], "vocabularyKeywords": [], "identifier_set": [], "observationcollection_set": [ { "ob_id": 2866, "uuid": "288e7f31d5ca03cca85e3309c632eeaa", "short_code": "coll", "title": "RAPID Circulation Overflow and Deep Convection Studies in the Nordic Seas Tracers and Models data", "abstract": "\"The Circulation, overflow, and deep convection studies in the Nordic Seas using tracers and models\" project was a Natural Environment Research Council (NERC) RAPID Climate Change Research Programme project (Round 1 - NER/T/S/2002/00446 - Duration 1 Aug 2003 - 31 Oct 2006 ) led by Prof Andrew Watson of the University of East Anglia, also with co-investigators at the University of East Anglia. Dataset contains sources of water in the Greenland-Scotland overflows: recent tracer release and transient tracer observations, as well as the initiation of convection and its relation to submesoscale hydrodynamics. \r\n\r\nThis dataset collection contains MIT General Circulation Model (MITgcm) ocean model basin and channel experiment outputs.\r\n\r\nThe project investigated two aspects of the Nordic Seas circulation of importance to the North Atlantic meridional overturning circulation (MOC): (1) Sources of water in the Greenland-Scotland overflows: recent tracer release and transient tracer observations were used to constrain inverse models of the sources of Denmark Straits and Faroe-Bank channel overflow waters. (2) The initiation of convection and its relation to submesoscale hydrodynamics: very high-resolution non-hydrostatic models for the Central Greenland Sea were used to model recent observations, which show convection to be intimately related to local sub-mesoscale structure.: The objective was to develop improved descriptions of convection for use in OGCMs, to more accurately describe how the sinking branch of the MOC will be affected by changes in forcing.\r\n\r\nRapid Climate Change (RAPID) was a £20 million, six-year (2001-2007) programme for the Natural Environment Research Council. The programme aimed to improve the ability to quantify the probability and magnitude of future rapid change in climate, with a main (but not exclusive) focus on the role of the Atlantic Ocean's Thermohaline Circulation." } ], "responsiblepartyinfo_set": [ 72118, 72119, 72120, 72121, 72122, 72123, 72124, 72117, 72125, 72472 ], "onlineresource_set": [] }, { "ob_id": 19171, "uuid": "f34f97696cd94946b6ace2e8738df805", "title": "HadISDH: gridded global monthly land surface humidity data version 3.0.0.2016p", "abstract": "This is the 3.0.0.2016p version of the HadISDH land data. The data are provided by the Met Office Hadley Centre. This version spans 1/1/1973 to 31/12/2016. \r\n\r\nThe data are monthly gridded (5 degree by 5 degree) and station products are available for temperature and six humidity variables: specific humidity (q), relative humidity (RH), dew point temperature (Td), wet bulb temperature (Tw), vapour pressure (e), dew point depression (DPD). Data are provided in either NetCDF or ASCII format.\r\n\r\nThis version extends the 2.1.0.2015p version to the end of 2016 and constitutes a major update to HadISDH due to a major update of the source data HadISD. Improvements in this version include increased numbers of stations (~8000) and updated methodologies. Users are advised to read the update document in the docs section for full details.\r\n\r\nUncertainty estimates are provided at the station and gridbox level covering station uncertainty (climatological, homogenisation and measurement uncertainty), gridbox spatial and temporal sampling uncertainty and combined station and sampling uncertainty.\r\n\r\nTo keep up to date with updates, news and announcements follow the HadOBS team on twitter @metofficeHadOBS.\r\n\r\nFor more detailed information e.g bug fixes, routine updates and other exploratory analysis, see the HadISDH blog: http://hadisdh.blogspot.co.uk/\r\n\r\nReferences:\r\nWhen using the dataset in a paper you must cite the following papers (see Docs for link to the publications) and this dataset (using the \"citable as\" reference) :\r\n\r\nWillett, K. M., Dunn, R. J. H., Thorne, P. W., Bell, S., de Podesta, M., Parker, D. E., Jones, P. D., and Williams Jr., C. N.: HadISDH land surface multi-variable humidity and temperature record for climate monitoring, Clim. Past, 10, 1983-2006, doi:10.5194/cp-10-1983-2014, 2014. \r\n\r\nSmith, A., N. Lott, and R. Vose, 2011: The Integrated Surface Database: Recent Developments and Partnerships. Bulletin of the American Meteorological Society, 92, 704–708, doi:10.1175/2011BAMS3015.1\r\n\r\nWe strongly recommend that you read these papers before making use of the data, more detail on the dataset can be found in an earlier publication:\r\n\r\nWillett, K. M., Williams Jr., C. N., Dunn, R. J. H., Thorne, P. W., Bell, S., de Podesta, M., Jones, P. D., and Parker D. E., 2013: HadISDH: An updated land surface specific humidity product for climate monitoring. Climate of the Past, 9, 657-677, doi:10.5194/cp-9-657-2013.", "creationDate": "2022-07-22T09:15:57.183554", "lastUpdatedDate": "2022-07-22T09:15:57.272326", "latestDataUpdateTime": "2017-02-16T07:58:23", "updateFrequency": "notPlanned", "dataLineage": "HadISDH, a global land surface humidity dataset is produced by the Met Office Hadley Centre in collaboration with Maynooth University, NOAA NCEI, NPL and CRU. It is based on the quality controlled sub-daily HadISD from the Met Office Hadley Centre which is in turn based on the ISD dataset from NOAA's NCEI. It is passed to the BADC for archiving and distribution.", "removedDataReason": "", "keywords": "HadISDH", "publicationState": "published", "nonGeographicFlag": false, "dontHarvestFromProjects": false, "language": "English", "resolution": "", "status": "superseded", "dataPublishedTime": "2017-02-16T08:06:02", "doiPublishedTime": null, "removedDataTime": null, "geographicExtent": { "ob_id": 1, "bboxName": "", "eastBoundLongitude": 180.0, "westBoundLongitude": -180.0, "southBoundLatitude": -90.0, "northBoundLatitude": 90.0 }, "verticalExtent": null, "result_field": { "ob_id": 19539, "dataPath": "/badc/ukmo-hadobs/data/insitu/MOHC/HadOBS/HadISDH/mon/HadISDHTable/r1/v3-0-0-2016p", "oldDataPath": [], "storageLocation": "internal", "storageStatus": "online", "volume": 644022407, "numberOfFiles": 30, "fileFormat": "These data are provided in NetCDF and ASCII format, descriptors of the file formats are included in Docs" }, "timePeriod": { "ob_id": 5342, "startTime": "1973-01-01T00:00:00", "endTime": "2016-12-31T00:00:00" }, "resultQuality": { "ob_id": 3043, "explanation": "Uncertainty estimates are provided as part of the dataset both at the station and gridbox level, this includes information covering station uncertainty (climatological, homogenisation and measurement uncertainty), gridbox spatial and temporal sampling uncertainty and combined station and sampling uncertainty. See dataset associated documentation for full details.", "passesTest": true, "resultTitle": "HadISDH Data Quality Statement", "date": "2016-06-14" }, "validTimePeriod": null, "procedureAcquisition": null, "procedureComputation": { "ob_id": 13526, "uuid": "02d903686bc9471a866e6b0d7c19f727", "short_code": "comp", "title": "HadISDH.land: gridded global land surface humidity dataset produced by the Met Office Hadley Centre", "abstract": "HadISDH.land utilises simultaneous subdaily temperature and dew point temperature data from over 3000 quality controlled HadISD stations that have sufficiently long records. All humidity variables are calculated at hourly resolution and monthly means are created. \r\n\r\nMonthly means are homogenised to detect and adjust for features within the data that do not appear to be of climate origin. While unlikely to be perfect, this process does help remove large errors from the data an improve robustness of long-term climate monitoring. The NCEI's Pairwise Homogenisation Algorithm has been used directly on DPD and T. An indirect PHA method (ID PHA) is used whereby changepoints detected in DPD and T are used to make adjustments to q, e, Tw and RH. Changepoints from DPD are also applied to T. Td is derived from homogenised T and DPD. See Docs 'HadISDH.land process diagram'.\r\n\r\nStation measurement, climatological and homogeneity adjustment uncertainties are estimated for each month. Climatological averages are calculated (the climatological period is dependent on product version) and monthly mean climate anomalies obtained. These anomalies (in addition to climatological mean and standard deviation, actual values and uncertainty components) are then averaged over 5° by 5° gridboxes centred on -177.5°W and -87.5°S to 177.5°E and 87.5°N. Given the uneven distribution of stations over time and space, sampling uncertainty is estimated for each gridbox month.\r\n\r\nFor greater detail please see:\r\nWillett, K. M., Dunn, R. J. H., Thorne, P. W., Bell, S., de Podesta, M., Parker, D. E., Jones, P. D., and Williams Jr., C. N.: HadISDH land surface multi-variable humidity and temperature record for climate monitoring, Clim. Past, 10, 1983-2006, doi:10.5194/cp-10-1983-2014, 2014. \r\n\r\nand\r\n\r\nWillett, K. M., Williams Jr., C. N., Dunn, R. J. H., Thorne, P. W., Bell, S., de Podesta, M., Jones, P. D., and Parker D. E., 2013: HadISDH: An updated land surface specific humidity product for climate monitoring. Climate of the Past, 9, 657-677, doi:10.5194/cp-9-657-2013.\r\n\r\nDocs contains links to both these publications" }, "procedureCompositeProcess": null, "imageDetails": [ 157 ], "discoveryKeywords": [ { "ob_id": 1138, "name": "NDGO0003" }, { "ob_id": 1139, "name": "CLIPC" } ], "permissions": [ { "ob_id": 2561, "accessConstraints": null, "accessCategory": "public", "accessRoles": null, "label": "public: None group", "licence": { "ob_id": 32, "licenceURL": "http://www.nationalarchives.gov.uk/doc/non-commercial-government-licence/version/2/", "licenceClassifications": [ { "ob_id": 6, "classification": "personal" }, { "ob_id": 4, "classification": "academic" }, { "ob_id": 5, "classification": "policy" } ] } } ], "projects": [ { "ob_id": 13164, "uuid": "ce252c81a7bd4717834055e31716b265", "short_code": "proj", "title": "Met Office Hadley Centre - Observations and Climate", "abstract": "The Met Office Hadley Centre is one of the UK's foremost climate change research centres.\r\n\r\nThe Hadley Centre produces world-class guidance on the science of climate change and provide a focus in the UK for the scientific issues associated with climate science.\r\n\r\nLargely co-funded by Department of Energy and Climate Change (DECC) and Defra (the Department for Environment, Food and Rural Affairs), the centre provides in-depth information to, and advise, the Government on climate science issues.\r\n\r\nAs one of the world's leading centres for climate science research, the Hadley Centre scientists make significant contributions to peer-reviewed literature and to a variety of climate science reports, including the Assessment Report of the IPCC. The Hadley Centre climate projections were the basis for the Stern Review on the Economics of Climate Change." } ], "inspireTheme": [], "topicCategory": [], "phenomena": [ 25173, 56886, 56887, 56888, 56889, 56890, 56891, 56892, 56893, 56894, 56895, 56897, 56898, 56899, 56900, 56901, 56902, 56903, 56904, 56905, 56909, 60438, 66183, 66184, 66185, 66192, 69440, 69441, 69442, 69443, 73576, 73580, 73584, 73592, 73598, 91280, 91281, 91282, 91283, 91284, 91285, 91286, 91287, 91288, 91289, 91290, 91291 ], "vocabularyKeywords": [ { "ob_id": 6657, "vocabService": "nerc_skos_vocab", "uri": "http://vocab.nerc.ac.uk/collection/P07/current/CF12N644/", "resolvedTerm": "tendency_of_atmosphere_mass_content_of_methyl_bromide_due_to_emission" }, { "ob_id": 6628, "vocabService": "nerc_skos_vocab", "uri": "http://vocab.nerc.ac.uk/collection/P07/current/CFSN0035/", "resolvedTerm": "wet_bulb_temperature" }, { "ob_id": 6760, "vocabService": "nerc_skos_vocab", "uri": "http://vocab.nerc.ac.uk/collection/P07/current/CFSN0722/", "resolvedTerm": "dew_point_depression" }, { "ob_id": 6524, "vocabService": "nerc_skos_vocab", "uri": "http://vocab.nerc.ac.uk/collection/P07/current/CFSN0723/", "resolvedTerm": "dew_point_temperature" }, { "ob_id": 8908, "vocabService": "nerc_skos_vocab", "uri": "http://vocab.nerc.ac.uk/collection/P07/current/CFV13N22/", "resolvedTerm": "spell_length_of_days_with_air_temperature_above_threshold" }, { "ob_id": 6701, "vocabService": "nerc_skos_vocab", "uri": "http://vocab.nerc.ac.uk/collection/P07/current/CFSN0313/", "resolvedTerm": "specific_humidity" }, { "ob_id": 6523, "vocabService": "nerc_skos_vocab", "uri": "http://vocab.nerc.ac.uk/collection/P07/current/CFSN0413/", "resolvedTerm": "relative_humidity" }, { "ob_id": 6684, "vocabService": "nerc_skos_vocab", "uri": "http://vocab.nerc.ac.uk/collection/P07/current/CFV15A33/", "resolvedTerm": "water_vapor_partial_pressure_in_air" }, { "ob_id": 6525, "vocabService": "nerc_skos_vocab", "uri": "http://vocab.nerc.ac.uk/collection/P07/current/CFSN0023/", "resolvedTerm": "air_temperature" } ], "identifier_set": [], "observationcollection_set": [ { "ob_id": 13522, "uuid": "251474c7b09449d8b9e7aeaf1461858f", "short_code": "coll", "title": "HadISDH: global surface humidity data", "abstract": "HadISDH (Integrated Surface Database Humidity) is a monthly 5° by 5° gridded global surface humidity climate monitoring dataset created from in-situ sub-daily synoptic data. The data have been quality controlled and homogenised (land), bias adjusted (marine) and buddy checked (marine). \r\n\r\nMonthly mean climate anomalies are provided alongside uncertainty estimates, actual values, climatological means and standard deviations for specific humidity, relative humidity, vapour pressure, dew point temperature, wet bulb temperature, dew point depression in addition to the simultaneously observed temperature." } ], "responsiblepartyinfo_set": [ 72133, 72129, 72131, 72139, 72140, 72141, 72132, 72130, 72134, 168093, 72135, 168094, 168095, 72136, 72137, 72138 ], "onlineresource_set": [ 16836, 16837, 15216, 15217, 15218, 15747, 17135, 15324, 15804, 15393 ] }, { "ob_id": 19172, "uuid": "862fbce9b01a41cfbffdadc8ec201dca", "title": "RAPID: Fresh Water Hosing model output from the CMIP experiment run by the HadCM3 model", "abstract": "\"To what extent was the Little Ice Age a result of a change in the thermohaline circulation?\" project. This was a Natural Environment Research Council (NERC) RAPID Climate Change Research Programme project (Joint International Round - NE/C509507/1 - Duration 1 Aug 2005 - 31 Jul 2008) led by Dr Tim Osborn of the University of East Anglia, with co-investigators at the University of East Anglia and Royal Netherlands Meteorology Institute. \r\n\r\nThe dataset contains fresh water hosing model output from the CMIP experiment run by the HadCM3 model. The freshwater was added to the North Atlantic basin between latitudes 50°N and 70°N.", "creationDate": "2022-07-22T09:15:57.183554", "lastUpdatedDate": "2022-07-22T09:15:57.272326", "latestDataUpdateTime": "2024-09-11T13:02:24", "updateFrequency": "asNeeded", "dataLineage": "Data from Climatic Research Unit, University of East Anglia", "removedDataReason": "", "keywords": "RAPID, Climate change, Atlantic Ocean's Thermohaline Circulation", "publicationState": "published", "nonGeographicFlag": false, "dontHarvestFromProjects": false, "language": "English", "resolution": "", "status": "completed", "dataPublishedTime": "2008-12-10T13:59:14", "doiPublishedTime": null, "removedDataTime": null, "geographicExtent": { "ob_id": 1, "bboxName": "", "eastBoundLongitude": 180.0, "westBoundLongitude": -180.0, "southBoundLatitude": -90.0, "northBoundLatitude": 90.0 }, "verticalExtent": null, "result_field": { "ob_id": 19174, "dataPath": "/badc/rapid/data/Osborn_Rapid1_JointAO/FW_hosing_CMIP", "oldDataPath": [], "storageLocation": "internal", "storageStatus": "online", "volume": 16839222083, "numberOfFiles": 4665, "fileFormat": "Data are netCDF formatted" }, "timePeriod": { "ob_id": 5012, "startTime": "1991-08-31T23:00:00", "endTime": "2008-07-24T22:59:59" }, "resultQuality": { "ob_id": 314, "explanation": "Not known.", "passesTest": true, "resultTitle": "CEDA Data Quality Statement", "date": "2014-09-21" }, "validTimePeriod": null, "procedureAcquisition": null, "procedureComputation": { "ob_id": 7452, "uuid": "10c5108e23554417a30bf69733c6e4d1", "short_code": "comp", "title": "Hadley Centre Coupled Model 3 (HadCM3) deployed on unknown computer", "abstract": "This computation involved: Hadley Centre Coupled Model 3 (HadCM3)." }, "procedureCompositeProcess": null, "imageDetails": [ 23 ], "discoveryKeywords": [ { "ob_id": 1138, "name": "NDGO0003" } ], "permissions": [ { "ob_id": 2526, "accessConstraints": null, "accessCategory": "public", "accessRoles": null, "label": "public: None group", "licence": { "ob_id": 3, "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/", "licenceClassifications": [ { "ob_id": 3, "classification": "any" } ] } } ], "projects": [ { "ob_id": 13397, "uuid": "3e02c3fc68f24b51afee68e954d62dc7", "short_code": "proj", "title": "RAPID Joint International A0 Project: To what extent was the Little Ice Age a result of a change in the THC?", "abstract": "Rapid Climate Change (RAPID) was a £20 million, six-year (2001-2007) programme for the Natural Environment Research Council. The programme aimed to improve the ability to quantify the probability and magnitude of future rapid change in climate, with a main (but not exclusive) focus on the role of the Atlantic Ocean's Thermohaline Circulation.\r\n\r\nFor a full understanding of the global climate system, it is imperative to integrate research on empirical climate reconstruction with physical modelling studies of the Earth's climate, using numerical models of varying complexity to address important questions about the attribution of past and future climate changes to specific natural and anthropogenic factors. The focus of this project was on testing various hypotheses about the possible causes of the Little Ice Age. A carefully-designed set of model experiments (incorporating novel methods of assimilating information on climate time scales) were proposed, with the outputs assessed through comparison against empirical palaeoclimate evidence for climate variations over the past millennium. Specifically exploreed whether the Little Ice Age climate could have been generated by one or more of the following factors: a weakening of the Atlantic thermohaline circulation; the persistence of a generally negative North Atlantic Oscillation; or reduced radiative forcing (by increased volcanic activity, reduced solar insolation and lower greenhouse gas concentrations relative to the present). " } ], "inspireTheme": [], "topicCategory": [], "phenomena": [ 1319, 1320, 1321, 1322, 1323, 3053, 3063, 3064, 52405, 53875, 53876, 53877, 53878, 53879, 53880, 53881, 53882, 53883, 53884, 53885, 53886, 53887, 53888, 53889, 53890, 53891, 53892, 53893, 53894, 53895, 53896, 53897, 53898, 53899, 53900, 53901, 53902, 53903, 53904, 53905, 53906, 53907, 53908, 53909, 53910, 53911, 53912, 53913, 53914, 53915, 53916, 53917, 53918, 53919, 53920, 53921, 53922, 53923, 53924, 53925, 53926, 74532, 79933, 79934, 79935, 79936, 79937, 79938, 79939, 79940, 79941, 79942, 79943, 79944, 79945, 79946, 79947, 79948, 79949, 79950, 79971 ], "vocabularyKeywords": [], "identifier_set": [], "observationcollection_set": [ { "ob_id": 1285, "uuid": "99a628f510a7a67b928bbaea8d091911", "short_code": "coll", "title": "RAPID To What Extent was the Little Ice Age a Result of a Change in the Thermohaline Circulation?: HadCM3 model outputs", "abstract": "\"To what extent was the Little Ice Age a result of a change in the thermohaline circulation?\" project. This was a Natural Environment Research Council (NERC) RAPID Climate Change Research Programme project (Joint International Round - NE/C509507/1 - Duration 1 Aug 2005 - 31 Jul 2008) led by Dr Tim Osborn of the University of East Anglia, with co-investigators at the University of East Anglia and Royal Netherlands Meteorology Institute. \r\n\r\nThe dataset collection contains various model experiment output used in an analysis of whether the Little Ice Age climate could have been generated by one or more of the following factors: a weakening of the Atlantic thermohaline circulation; the persistence of a generally negative North Atlantic Oscillation; or reduced radiative forcing (by increased volcanic activity, reduced solar insolation and lower greenhouse gas concentrations relative to the present).\r\n\r\nRapid Climate Change (RAPID) was a £20 million, six-year (2001-2007) programme for the Natural Environment Research Council. The programme aimed to improve the ability to quantify the probability and magnitude of future rapid change in climate, with a main (but not exclusive) focus on the role of the Atlantic Ocean's Thermohaline Circulation.\r\n" } ], "responsiblepartyinfo_set": [ 72150, 72142, 72143, 72145, 72146, 72147, 72148, 72144, 72476 ], "onlineresource_set": [ 15246 ] }, { "ob_id": 19173, "uuid": "7b6993cbf7ec45f9ad01b86bed537e4c", "title": "HadISD: Global sub-daily, surface meteorological station data, 1973-2015, v1.0.4.2015p", "abstract": "This is version 1.0.4.2015p of HadISD (27 April 2015) the Met Office Hadley Centre's global sub-daily data, extending v1.0.3.2014f to span 1/1/1973 - 31/12/2015. \r\n\r\nThe quality controlled variables in this dataset are: temperature, dewpoint temperature, sea-level pressure, wind speed and direction, cloud data (total, low, mid and high level). Past significant weather and precipitation data are also included, but have not been quality controlled, their quality and completness cannot be guaranteed. Quality control flags and data values which have been removed in the quality control process are also provided along with a station listing with IDs, names and location information. The data are provided as one NetCDF file per station. \r\n\r\nThe data are provided as one NetCDF file per station. Files in the station_data folder station data files have the format \"station_code\"_HadISD_HadOBS_19310101-20151231_v1-0-4-2015p.nc. The station codes can be found under the docs tab or on the archive beside the station_data folder. The station codes file has five columns as follows: 1) station code, 2) station name 3) station latitude 4) station longitude 5) station height.\r\n\r\nTo keep up to date with updates, news and announcements follow the HadOBS team on twitter @metofficeHadOBS.\r\n\r\nFor more detailed information e.g bug fixes, routine updates and other exploratory analysis, see the HadISD blog: http://hadisd.blogspot.co.uk/\r\n\r\nReferences:\r\nWhen using the dataset in a paper you must cite the following papers (see Docs for link to the publications) and this dataset (using the \"citable as\" reference) :\r\n\r\nDunn, R. J. H., et al. (2012), HadISD: A Quality Controlled global synoptic report database for selected variables at long-term stations from 1973-2011, Climate of the Past\r\n\r\nSmith, A., N. Lott, and R. Vose, 2011: The Integrated Surface Database: Recent Developments and Partnerships. Bulletin of the American Meteorological Society, 92, 704–708, doi:10.1175/2011BAMS3015.1\r\n\r\nFor a homogeneity assessment of HadISD please see this following reference\r\n\r\nDunn, R. J. H., K. M. Willett, C. P. Morice, and D. E. Parker. \"Pairwise homogeneity assessment of HadISD.\" Climate of the Past 10, no. 4 (2014): 1501-1522. doi:10.5194/cp-10-1501-2014, 2014.", "creationDate": "2022-07-22T09:15:57.183554", "lastUpdatedDate": "2022-07-22T09:15:57.272326", "latestDataUpdateTime": "2016-08-09T09:42:15.908313", "updateFrequency": "notPlanned", "dataLineage": "HadISD the global sub-daily station dataset is produced by the Met Office Hadley Centre. It is based on the ISD dataset from NOAA's NCDC. 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" }, "timePeriod": { "ob_id": 9613, "startTime": "1973-01-01T00:00:00", "endTime": "2015-12-31T23:59:59" }, "resultQuality": null, "validTimePeriod": null, "procedureAcquisition": null, "procedureComputation": { "ob_id": 3862, "uuid": "c8a8c946e63a421987db316acb8384f1", "short_code": "comp", "title": "HadISD station data processing performed at the Met Office Hadley Centre", "abstract": "The HadISD station data were produced by the Met Office Hadley Centre. Individual station data within the ISD were selected to be merged to form composite stations using a hierarchical scoring system. Then stations were selected on the basis of their length of record and reporting frequency. A final set of 6103 stations were passed through a suite of automated quality control tests designed to remove bad data whilst keeping the extremes. None of the ISD flags were used in this process. The QC tests focussed on the temperature, dewpoint temperature and sea-level pressure variables, although some were applied to the wind speed and direction and cloud data. The data files also contain other variables which were pulled through from the raw ISD record, but have had no QC applied (e.g. cloud base and precipitation depth). Some final filtering was performed to select those stations which in our opinion are most useful for climate studies. Note: These data have not yet been homogenised and so trend fitting should be undertaken with caution. The homogeneity has been assessed and results are available from the Met Office Hadley Centre HadISD website (http://www.metoffice.gov.uk/hadobs/hadisd/) For further details see: Dunn, R. J. H., et al. (2012), HadISD: A Quality Controlled global synoptic report database for selected variables at long-term stations from 1973-2011, Climate of the Past and Dunn, R. J. H., et al. (2014), Pairwise Homogeneity Assessment of HadISD, Climate of the Past, 10, 1501-1522 (see Docs for links to publications)." }, "procedureCompositeProcess": null, "imageDetails": [ 157 ], "discoveryKeywords": [ { "ob_id": 1138, "name": "NDGO0003" }, { "ob_id": 1139, "name": "CLIPC" } ], "permissions": [ { "ob_id": 2561, "accessConstraints": null, "accessCategory": "public", "accessRoles": null, "label": "public: None group", "licence": { "ob_id": 32, "licenceURL": "http://www.nationalarchives.gov.uk/doc/non-commercial-government-licence/version/2/", "licenceClassifications": [ { "ob_id": 6, "classification": "personal" }, { "ob_id": 4, "classification": "academic" }, { "ob_id": 5, "classification": "policy" } ] } } ], "projects": [ { "ob_id": 13164, "uuid": "ce252c81a7bd4717834055e31716b265", "short_code": "proj", "title": "Met Office Hadley Centre - Observations and Climate", "abstract": "The Met Office Hadley Centre is one of the UK's foremost climate change research centres.\r\n\r\nThe Hadley Centre produces world-class guidance on the science of climate change and provide a focus in the UK for the scientific issues associated with climate science.\r\n\r\nLargely co-funded by Department of Energy and Climate Change (DECC) and Defra (the Department for Environment, Food and Rural Affairs), the centre provides in-depth information to, and advise, the Government on climate science issues.\r\n\r\nAs one of the world's leading centres for climate science research, the Hadley Centre scientists make significant contributions to peer-reviewed literature and to a variety of climate science reports, including the Assessment Report of the IPCC. The Hadley Centre climate projections were the basis for the Stern Review on the Economics of Climate Change." } ], "inspireTheme": [], "topicCategory": [], "phenomena": [ 1050, 12419, 12420, 12421, 12422, 12423, 12424, 12425, 12426, 12427, 12428, 12429, 12430, 12431, 12432, 12433, 12434, 12435, 12436, 12437, 12439, 25956 ], "vocabularyKeywords": [ { "ob_id": 8128, "vocabService": "nerc_skos_vocab", "uri": "http://vocab.nerc.ac.uk/collection/P07/current/CFSN0569/", "resolvedTerm": "lwe_thickness_of_precipitation_amount" }, { "ob_id": 6556, "vocabService": "nerc_skos_vocab", "uri": "http://vocab.nerc.ac.uk/collection/P07/current/CFSN0038/", "resolvedTerm": "wind_speed" }, { "ob_id": 6555, "vocabService": "nerc_skos_vocab", "uri": "http://vocab.nerc.ac.uk/collection/P07/current/CFSN0036/", "resolvedTerm": "wind_from_direction" }, { "ob_id": 6568, "vocabService": "nerc_skos_vocab", "uri": "http://vocab.nerc.ac.uk/collection/P07/current/CFSN0022/", "resolvedTerm": "air_pressure_at_sea_level" }, { "ob_id": 6525, "vocabService": "nerc_skos_vocab", "uri": "http://vocab.nerc.ac.uk/collection/P07/current/CFSN0023/", "resolvedTerm": "air_temperature" }, { "ob_id": 6573, "vocabService": "nerc_skos_vocab", "uri": "http://vocab.nerc.ac.uk/collection/P07/current/CFSN0039/", "resolvedTerm": "wind_speed_of_gust" }, { "ob_id": 6524, "vocabService": "nerc_skos_vocab", "uri": "http://vocab.nerc.ac.uk/collection/P07/current/CFSN0723/", "resolvedTerm": "dew_point_temperature" }, { "ob_id": 6570, "vocabService": "nerc_skos_vocab", "uri": "http://vocab.nerc.ac.uk/collection/P07/current/CFSN0745/", "resolvedTerm": "cloud_area_fraction" }, { "ob_id": 6923, "vocabService": "nerc_skos_vocab", "uri": "http://vocab.nerc.ac.uk/collection/P07/current/CFSN0747/", "resolvedTerm": "cloud_base_altitude" } ], "identifier_set": [], "observationcollection_set": [ { "ob_id": 13521, "uuid": "f579035b3c954475922e4b13705a7669", "short_code": "coll", "title": "HadISD: global sub-daily station data for climate extremes", "abstract": "HadISD is a station based dataset comprising 6103 stations covering 1973-present. These stations are a subset of the stations available in the Integrated Surface Database (ISD), and are ones selected to be those most useful for climate studies (long records and high reporting frequency). Individual stations within the ISD were composited when it was appropriate to do so to improve the coverage.\r\n \r\nHadISD is a multi-variate dataset, where the following fields are available: temperature, dewpoint temperature, sea-level pressure, wind speed, wind direction and cloud data (total, low, mid and high levels). These variables are all quality controlled using an automatic suite of tests, the code for which is available on request. The QC tests were designed to remove bad data whilst keeping true extremes. 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This was a Natural Environment Research Council (NERC) RAPID Climate Change Research Programme project (Joint International Round - NE/C509507/1 - Duration 1 Aug 2005 - 31 Jul 2008) led by Dr Tim Osborn of the University of East Anglia, with co-investigators at the University of East Anglia and Royal Netherlands Meteorology Institute. \r\n\r\nThe dataset contains fresh water hosing model output from the LAR experiment run by the HadCM3 model. The freshwater was added to the North Atlantic basin to a larger area north of the CMIP (between latitudes 50°N and 70°N) area. ", "creationDate": "2022-07-22T09:15:57.183554", "lastUpdatedDate": "2022-07-22T09:15:57.272326", "latestDataUpdateTime": "2024-09-11T12:55:28", "updateFrequency": "asNeeded", "dataLineage": "Data from Climatic Research Unit, University of East Anglia", "removedDataReason": "", "keywords": "RAPID, Climate change, Atlantic Ocean's Thermohaline Circulation", "publicationState": "published", "nonGeographicFlag": false, "dontHarvestFromProjects": false, "language": "English", "resolution": "", "status": "completed", "dataPublishedTime": "2008-12-10T14:00:07", "doiPublishedTime": null, "removedDataTime": null, "geographicExtent": { "ob_id": 1, "bboxName": "", "eastBoundLongitude": 180.0, "westBoundLongitude": -180.0, "southBoundLatitude": -90.0, "northBoundLatitude": 90.0 }, "verticalExtent": null, "result_field": { "ob_id": 19176, "dataPath": "/badc/rapid/data/Osborn_Rapid1_JointAO/FW_hosing_LAR", "oldDataPath": [], "storageLocation": "internal", "storageStatus": "online", "volume": 16787036102, "numberOfFiles": 4648, "fileFormat": "Data are netCDF formatted" }, "timePeriod": { "ob_id": 5012, "startTime": "1991-08-31T23:00:00", "endTime": "2008-07-24T22:59:59" }, "resultQuality": { "ob_id": 314, "explanation": "Not known.", "passesTest": true, "resultTitle": "CEDA Data Quality Statement", "date": "2014-09-21" }, "validTimePeriod": null, "procedureAcquisition": null, "procedureComputation": { "ob_id": 7452, "uuid": "10c5108e23554417a30bf69733c6e4d1", "short_code": "comp", "title": "Hadley Centre Coupled Model 3 (HadCM3) deployed on unknown computer", "abstract": "This computation involved: Hadley Centre Coupled Model 3 (HadCM3)." }, "procedureCompositeProcess": null, "imageDetails": [ 23 ], "discoveryKeywords": [ { "ob_id": 1138, "name": "NDGO0003" } ], "permissions": [ { "ob_id": 2526, "accessConstraints": null, "accessCategory": "public", "accessRoles": null, "label": "public: None group", "licence": { "ob_id": 3, "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/", "licenceClassifications": [ { "ob_id": 3, "classification": "any" } ] } } ], "projects": [ { "ob_id": 13397, "uuid": "3e02c3fc68f24b51afee68e954d62dc7", "short_code": "proj", "title": "RAPID Joint International A0 Project: To what extent was the Little Ice Age a result of a change in the THC?", "abstract": "Rapid Climate Change (RAPID) was a £20 million, six-year (2001-2007) programme for the Natural Environment Research Council. The programme aimed to improve the ability to quantify the probability and magnitude of future rapid change in climate, with a main (but not exclusive) focus on the role of the Atlantic Ocean's Thermohaline Circulation.\r\n\r\nFor a full understanding of the global climate system, it is imperative to integrate research on empirical climate reconstruction with physical modelling studies of the Earth's climate, using numerical models of varying complexity to address important questions about the attribution of past and future climate changes to specific natural and anthropogenic factors. The focus of this project was on testing various hypotheses about the possible causes of the Little Ice Age. A carefully-designed set of model experiments (incorporating novel methods of assimilating information on climate time scales) were proposed, with the outputs assessed through comparison against empirical palaeoclimate evidence for climate variations over the past millennium. Specifically exploreed whether the Little Ice Age climate could have been generated by one or more of the following factors: a weakening of the Atlantic thermohaline circulation; the persistence of a generally negative North Atlantic Oscillation; or reduced radiative forcing (by increased volcanic activity, reduced solar insolation and lower greenhouse gas concentrations relative to the present). " } ], "inspireTheme": [], "topicCategory": [], "phenomena": [ 1319, 1320, 1321, 1322, 1323, 3053, 3063, 3064, 52405, 53875, 53876, 53877, 53878, 53879, 53880, 53881, 53882, 53883, 53884, 53885, 53886, 53887, 53888, 53889, 53890, 53891, 53892, 53893, 53894, 53895, 53896, 53897, 53898, 53899, 53900, 53901, 53902, 53903, 53904, 53905, 53906, 53907, 53908, 53909, 53910, 53911, 53912, 53913, 53914, 53915, 53916, 53917, 53918, 53919, 53920, 53921, 53922, 53923, 53924, 53925, 53926, 74532, 79933, 79934, 79935, 79936, 79937, 79938, 79939, 79940, 79941, 79942, 79943, 79944, 79945, 79946, 79947, 79948, 79949, 79950, 79971 ], "vocabularyKeywords": [], "identifier_set": [], "observationcollection_set": [ { "ob_id": 1285, "uuid": "99a628f510a7a67b928bbaea8d091911", "short_code": "coll", "title": "RAPID To What Extent was the Little Ice Age a Result of a Change in the Thermohaline Circulation?: HadCM3 model outputs", "abstract": "\"To what extent was the Little Ice Age a result of a change in the thermohaline circulation?\" project. This was a Natural Environment Research Council (NERC) RAPID Climate Change Research Programme project (Joint International Round - NE/C509507/1 - Duration 1 Aug 2005 - 31 Jul 2008) led by Dr Tim Osborn of the University of East Anglia, with co-investigators at the University of East Anglia and Royal Netherlands Meteorology Institute. \r\n\r\nThe dataset collection contains various model experiment output used in an analysis of whether the Little Ice Age climate could have been generated by one or more of the following factors: a weakening of the Atlantic thermohaline circulation; the persistence of a generally negative North Atlantic Oscillation; or reduced radiative forcing (by increased volcanic activity, reduced solar insolation and lower greenhouse gas concentrations relative to the present).\r\n\r\nRapid Climate Change (RAPID) was a £20 million, six-year (2001-2007) programme for the Natural Environment Research Council. The programme aimed to improve the ability to quantify the probability and magnitude of future rapid change in climate, with a main (but not exclusive) focus on the role of the Atlantic Ocean's Thermohaline Circulation.\r\n" } ], "responsiblepartyinfo_set": [ 72163, 72164, 72165, 72167, 72168, 72169, 72170, 72166, 72475 ], "onlineresource_set": [ 15245 ] }, { "ob_id": 19177, "uuid": "129803d85d014148b3261da974a27349", "title": "RAPID: Fresh Water Hosing model output from the LOC experiment run by the HadCM3 model", "abstract": "\"To what extent was the Little Ice Age a result of a change in the thermohaline circulation?\" project. 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The programme aimed to improve the ability to quantify the probability and magnitude of future rapid change in climate, with a main (but not exclusive) focus on the role of the Atlantic Ocean's Thermohaline Circulation.\r\n\r\nFor a full understanding of the global climate system, it is imperative to integrate research on empirical climate reconstruction with physical modelling studies of the Earth's climate, using numerical models of varying complexity to address important questions about the attribution of past and future climate changes to specific natural and anthropogenic factors. The focus of this project was on testing various hypotheses about the possible causes of the Little Ice Age. A carefully-designed set of model experiments (incorporating novel methods of assimilating information on climate time scales) were proposed, with the outputs assessed through comparison against empirical palaeoclimate evidence for climate variations over the past millennium. 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" } ], "inspireTheme": [], "topicCategory": [], "phenomena": [ 1319, 1320, 1321, 1322, 1323, 1325, 3053, 3063, 3064, 3105, 52405, 53875, 53876, 53877, 53878, 53879, 53880, 53881, 53882, 53883, 53884, 53885, 53886, 53887, 53888, 53889, 53890, 53891, 53892, 53893, 53894, 53895, 53896, 53897, 53898, 53899, 53900, 53901, 53902, 53903, 53904, 53905, 53906, 53907, 53908, 53909, 53910, 53911, 53912, 53913, 53914, 53915, 53916, 53917, 53918, 53919, 53920, 53921, 53922, 53923, 53924, 53925, 53926 ], "vocabularyKeywords": [], "identifier_set": [], "observationcollection_set": [ { "ob_id": 1285, "uuid": "99a628f510a7a67b928bbaea8d091911", "short_code": "coll", "title": "RAPID To What Extent was the Little Ice Age a Result of a Change in the Thermohaline Circulation?: HadCM3 model outputs", "abstract": "\"To what extent was the Little Ice Age a result of a change in the thermohaline circulation?\" project. This was a Natural Environment Research Council (NERC) RAPID Climate Change Research Programme project (Joint International Round - NE/C509507/1 - Duration 1 Aug 2005 - 31 Jul 2008) led by Dr Tim Osborn of the University of East Anglia, with co-investigators at the University of East Anglia and Royal Netherlands Meteorology Institute. \r\n\r\nThe dataset collection contains various model experiment output used in an analysis of whether the Little Ice Age climate could have been generated by one or more of the following factors: a weakening of the Atlantic thermohaline circulation; the persistence of a generally negative North Atlantic Oscillation; or reduced radiative forcing (by increased volcanic activity, reduced solar insolation and lower greenhouse gas concentrations relative to the present).\r\n\r\nRapid Climate Change (RAPID) was a £20 million, six-year (2001-2007) programme for the Natural Environment Research Council. 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This was a Natural Environment Research Council (NERC) RAPID Climate Change Research Programme project (Joint International Round - NE/C509507/1 - Duration 1 Aug 2005 - 31 Jul 2008) led by Dr Tim Osborn of the University of East Anglia, with co-investigators at the University of East Anglia and Royal Netherlands Meteorology Institute. \r\n\r\nThe dataset contains fresh water hosing model output from the SIB experiment run by the HadCM3 model. 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In the face of such risks, there is an obvious need for better, more quantitative, forecasts of the future behaviour of the AMOC. Such forecasts could provide early warning of possible rapid changes in the AMOC in future The RAPID array is a measurement system for observing the current state of the AMOC. \r\n\r\nThe overarching goal of the VALOR project was to assess the value of these observations for predicting the future behaviour of the AMOC, and its impacts on climate. The project explored a range of issues concerning the design of a potential AMOC prediction system. To achieve its goals VALOR exploited the RAPID observations in a variety of ways. First the observations were used as independent data to assess the quality of current ocean \"analyses\" (An \"analysis\" provides a quantitative description of the state of the ocean at a given time.). Next, they were used to improve the analyses. Finally, they were used to provide the starting conditions for a large set of \"hindcasts\". Hindcasts are predictions made from a date in the past, which only make use of information that would have been available at that date. These predictions can then be compared to what actually happened to assess prediction skill. \r\n\r\nVALOR carried out a suite of hindcast experiments to quantify the extent to which the RAPID observations can improve the skill of predictions of the AMOC and its impacts on climate. An important dimension of the project is that it involves agencies who are directly involved in operational climate forecasting: the Met Office Hadley Centre (MOHC) and the European Centre for Medium Range Weather Forecasting. By involving these partners from the start the project will benefit from their experience and expertise, and the scientific advances achieved through the research will feed directly into better climate predictions." } ], "inspireTheme": [], "topicCategory": [], "phenomena": [ 18120, 50628, 50631, 50633, 50634, 52949, 52960, 52977, 61001, 61002, 61003, 61039, 61040, 61041, 61042, 61048, 61049, 61050, 61051, 61052, 61062, 61064, 70351, 70352, 70353, 70354, 70355, 70356, 70357, 70358, 70359, 70360, 70361, 70362, 70363, 70364, 70365, 70366, 70367, 70368, 70369, 70370, 70371, 70372, 70373, 70374, 70375, 70376, 70377, 70378, 70379, 70380, 70381, 70382, 70383, 70384, 70385, 70386, 70387, 70388 ], "vocabularyKeywords": [], "identifier_set": [], "observationcollection_set": [ { "ob_id": 1288, "uuid": "6d174866bffa027564340a4cd561ddfa", "short_code": "coll", "title": "RAPID-WATCH VALOR: NEMO, FOAM AND ECMWF Model output", "abstract": "RAPID-WATCH VALOR project investigated how the inclusion of RAPID-WATCH observations into the 'initial conditions', used to start climate model simulations, can refine predictions of the future climate and, particularly, the future state of the AMOC.\r\n\r\nThis dataset collection contains NEMO, FOAM AND ECMWF Model output.\r\n\r\nThe project developed ways to assimilate the RAPID-WATCH and other ocean observations into ocean models which were then used to produce ocean 'syntheses' - complete data sets of our best guess of past ocean state. Similar syntheses were also produced which exclude the RAPID-WATCH observations. Both of these sytheses were then used to start prediction experiments in climate models. By comparing the climate model simulations starting with and without the RAPID-WATCH observations, the impact of the the RAPID-WATCH array observations on climate predictions, and the climate model AMOC were found." } ], "responsiblepartyinfo_set": [ 72243, 72244, 72246, 72247, 72248, 72250, 72249, 72245, 72485 ], "onlineresource_set": [] }, { "ob_id": 19196, "uuid": "685eb7f2adf44490bcb0ad5f7b5eccfc", "title": "DIAMET: Air-sea flux measurements based on FAAM flights", "abstract": "Airborne atmospheric measurements from core and non-core instrument suites data on board the FAAM BAE-146 aircraft collected for DIAMET (Diabatic influences on mesoscale structures in extratropical storms) project.\r\n\r\nThis dataset contains air-sea flux measurements based on FAAM flights", "creationDate": "2022-07-22T09:15:57.183554", "lastUpdatedDate": "2022-07-22T09:15:57.272326", "latestDataUpdateTime": "2015-03-03T14:32:56", "updateFrequency": "notPlanned", "dataLineage": "Data were collected by instrument scientists during the flight before preparation and delivery for archiving at the NCAS British Atmospheric Data Centre.", "removedDataReason": "", "keywords": "DIAMET, FAAM, airborne, atmospheric measurments", "publicationState": "published", "nonGeographicFlag": false, "dontHarvestFromProjects": false, "language": "English", "resolution": "", "status": "completed", "dataPublishedTime": "2011-03-17T09:19:10", "doiPublishedTime": null, "removedDataTime": null, "geographicExtent": { "ob_id": 1581, "bboxName": "", "eastBoundLongitude": -0.42592117190361023, "westBoundLongitude": -10.495361328125, "southBoundLatitude": 51.86751937866211, "northBoundLatitude": 53.578487396240234 }, "verticalExtent": null, "result_field": { "ob_id": 19197, "dataPath": "/badc/stormsrisk/data/diamet/air-sea-fluxes/", "oldDataPath": [], "storageLocation": "internal", "storageStatus": "online", "volume": 645192, "numberOfFiles": 8, "fileFormat": "Data are ASCII formatted" }, "timePeriod": { "ob_id": 4967, "startTime": "2011-09-16T04:48:15", "endTime": "2011-09-16T12:24:34" }, "resultQuality": { "ob_id": 3032, "explanation": "Data collected by flight participants before preparation for archival with the British Atmospheric Data Centre", "passesTest": true, "resultTitle": "FAAM to BADC Data Quality Statement", "date": "2015-09-03" }, "validTimePeriod": null, "procedureAcquisition": { "ob_id": 18960, "uuid": "f8df9a305e314888a87b7143f95e191b", "short_code": "acq", "title": "FAAM Flight B647 Acquisition", "abstract": "FAAM Flight B647 Acquisition" }, "procedureComputation": null, "procedureCompositeProcess": null, "imageDetails": [ 2 ], "discoveryKeywords": [ { "ob_id": 1138, "name": "NDGO0003" } ], "permissions": [ { "ob_id": 2526, "accessConstraints": null, "accessCategory": "public", "accessRoles": null, "label": "public: None group", "licence": { "ob_id": 3, "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/", "licenceClassifications": [ { "ob_id": 3, "classification": "any" } ] } } ], "projects": [ { "ob_id": 6602, "uuid": "cbb3205aca023fd4ee395dbbc7f5b281", "short_code": "proj", "title": "DIAMET (Diabatic influences on mesoscale structures in extratropical storms) project", "abstract": "The project is aimed at a better understanding and prediction of mesoscale structures in synoptic-scale storms. Such structures include fronts, rain bands, secondary cyclones, sting jets etc, and are important because much of the extreme weather we experience (e.g. strong winds, heavy rain) comes from such regions. Weather forecasting models are able to capture some of this activity correctly, but there is much still to learn. By a combination of measurements and modelling, mainly using the Met Office Unified Model (UM), we will work to better understand how mesoscale processes in cyclones give rise to severe weather and how they can be better represented in models and better forecast. The project is organised into three broad work packages. The first of these aims to look at real mesoscale structures in the atmosphere, using high-resolution in situ and radar measurements to derive their morphology and dynamics. The key to the latter is to calculate the production of potential vorticity by diabatic processes - especially phase changes of water (vapour/liquid/ice) and air-sea fluxes of sensible and latent heat. The associated high-resolution modelling programme will use the UM to simulate a representative number of events, diagnosing the PV tendency in the model and comparing with the measurements. Sensitivity studies and further diagnostics with the model will reveal the sensitivity of the forecasts to the correct representation of these processes and the dynamical consequences of diabatically-generated PV, both on the mesoscale and larger scales. Two student projects will investigate the role of boundary-layer processes in storm behaviour and conduct a statistical investigation of mesoscale precipitation features, based on archived radar and wind profiler data. The second WP examines particular physical processes and the way these are represented in forecast models. Convection cannot be explicitly represented in current large-scale models (it is just beginning to be resolvable by high-resolution local-area models) so it needs to be parameterised. The schemes that are used are not optimised for mid-latitude storms, where convection often initiates at altitude rather than at the Earth's surface. A combination of novel diagnostics and new (or modified) schemes aimed at improving the representation of convection will be developed in this WP. Also addressed here will be the derivation of air-sea fluxes of heat and momentum from aircraft flights, and their use (as part of a larger, ongoing international project) to derive a better parameterisation for these quantities in high wind conditions. Lastly, microphysical measurements made with the FAAM aircraft will be used to derive latent heating/cooling rates as a function of the microphysical environment and used to improve the model simulations in the first WP and to improve microphysical parameterisations in the UM The final WP addresses the problem of predictability, using a combination of ensemble and data assimilation techniques. A unique archive of forecast ensembles produced at the Met Office will be exploited to determine how well the forecast ensemble actually generates realistic mesoscale features, and the skill with which this is done (using standard measures of skill). Model errors in representing convection, air-sea fluxes and microphysics will be investigated to determine their impact on the forecasts for different flow conditions. The relationship between different model variables on the mesoscale is poorly known at present and this will be investigated using ensembles and the results of the measurement programme. Finally, novel approaches to data assimilation will be investigated through a student project." } ], "inspireTheme": [], "topicCategory": [], "phenomena": [], "vocabularyKeywords": [], "identifier_set": [], "observationcollection_set": [ { "ob_id": 6599, "uuid": "6ca226c9634e57437f204ad9c5be77e1", "short_code": "coll", "title": "DIAMET: Ensemble of Atmospheric Airborne and Ground-based Measurements including Radar Data", "abstract": "Data from the DIAMET (DIAbatic influences on Mesoscale structures in ExTratropical storms, NE/I005234/1) project, part of the Storms Risk Mitigation NERC (Natural Environment Research Council) research programme 2009-2014. DIAMET used the FAAM (Facility for Airborne Atmospheric Measurements) BAE-146 aircraft, ground-based and airborne instruments and radar together with modelling studies to forge a better understanding and prediction of mesoscale structures in synoptic-scale storms. This is determined by focusing an incident laser beam on particles, and whenever a particle passes through the beam, a shadow is generated and imaged onto the diode array. These images are part of this dataset along with flight summaries.\r\n\r\nThe DIAMET project aimed to better the understanding and prediction of mesoscale structures in synoptic-scale storms. Such structures include fronts, rain bands, secondary cyclones, sting jets etc, and are important because much of the extreme weather we experience (e.g. strong winds, heavy rain) comes from such regions. Weather forecasting models are able to capture some of this activity correctly, but there is much still to learn. By a combination of measurements and modelling, mainly using the Met Office Unified Model (UM), the project worked to better understand how mesoscale processes in cyclones give rise to severe weather and how they can be better represented in models and better forecast. The project is organised into three sections.\r\n\r\nReal mesoscale structures in the atmosphere have been examined, using high-resolution in situ and radar measurements to derive their morphology and dynamics. The key to the latter is to calculate the production of potential vorticity by diabatic processes - especially phase changes of water (vapour/liquid/ice) and air-sea fluxes of sensible and latent heat. The associated high-resolution modelling programme will use the UM to simulate a representative number of events, diagnosing the PV tendency in the model and comparing with the measurements. Sensitivity studies and further diagnostics with the model will reveal the sensitivity of the forecasts to the correct representation of these processes and the dynamical consequences of diabatically-generated PV, both on the mesoscale and larger scales. Two student projects have investigated the role of boundary-layer processes in storm behaviour and conduct a statistical investigation of mesoscale precipitation features, based on archived radar and wind profiler data.\r\n\r\nExamination of particular physical processes and the way these are represented in forecast models. Convection cannot be explicitly represented in current large-scale models (it is just beginning to be resolvable by high-resolution local-area models) so it needs to be parameterised. The schemes that are used are not optimised for mid-latitude storms, where convection often initiates at altitude rather than at the Earth's surface. A combination of novel diagnostics and new (or modified) schemes aimed at improving the representation of convection will be developed. Also addressed here will be the derivation of air-sea fluxes of heat and momentum from aircraft flights, and their use (as part of a larger, ongoing international project) to derive a better parameterisation for these quantities in high wind conditions. Lastly, microphysical measurements made with the FAAM aircraft will be used to derive latent heating/cooling rates as a function of the microphysical environment and used to improve the model simulations in the first WP and to improve microphysical parameterisations in the UM.\r\n\r\nThe problem of predictability will be addressed using a combination of ensemble and data assimilation techniques. A unique archive of forecast ensembles produced at the Met Office will be exploited to determine how well the forecast ensemble actually generates realistic mesoscale features, and the skill with which this is done (using standard measures of skill). Model errors in representing convection, air-sea fluxes and microphysics will be investigated to determine their impact on the forecasts for different flow conditions. The relationship between different model variables on the mesoscale is poorly known at present and this will be investigated using ensembles and the results of the measurement programme. Finally, novel approaches to data assimilation will be investigated." } ], "responsiblepartyinfo_set": [ 72252, 72253, 72254, 72255, 72256, 72257, 72258, 72251, 72259, 72260 ], "onlineresource_set": [ 15230, 15231, 15232 ] }, { "ob_id": 19212, "uuid": "5580fd06cc14487ab2b2d6bf4efc7dac", "title": "AASE: Analyses of temperature, geopotential height, and horizontal wind components on constant pressure surfaces", "abstract": "The Airborne Arctic Stratospheric Expedition (AASE) which was based in Stavanger, Norway during January and February, 1989, was designed to study the production and loss mechanisms of ozone in the north polar stratospheric environment, and the effect on ozone distribution of the Arctic polar vortex and of the cold temperatures associated with the formation of Polar Stratospheric Clouds (PSC). \r\n\r\nThis dataset contains analyses of temperature, geopotential height, and horizontal wind components on constant pressure surfaces.", "creationDate": "2022-07-22T09:15:57.183554", "lastUpdatedDate": "2022-07-22T09:15:57.272326", "latestDataUpdateTime": "1998-07-24T11:44:20", "updateFrequency": "notPlanned", "dataLineage": "Data were collected during January and February 1988-1989.\r\nCopy of CR-ROM published by NASA. The data are held on CD-ROM at the BADC.", "removedDataReason": "", "keywords": "AASE, AASE-98, chemistry, analysis", "publicationState": "published", "nonGeographicFlag": false, "dontHarvestFromProjects": false, "language": "English", "resolution": "", "status": "completed", "dataPublishedTime": "1990-12-10T10:38:46", "doiPublishedTime": null, "removedDataTime": null, "geographicExtent": { "ob_id": 1590, "bboxName": "AASE", "eastBoundLongitude": -1.183, "westBoundLongitude": -60.0, "southBoundLatitude": 60.133, "northBoundLatitude": 80.0 }, "verticalExtent": null, "result_field": { "ob_id": 19213, "dataPath": "/badc/CDs/aase89/data/analyses/isobaric/", "oldDataPath": [], "storageLocation": "internal", "storageStatus": "online", "volume": 125958548, "numberOfFiles": 1651, "fileFormat": "Data are ASCII formatted" }, "timePeriod": { "ob_id": 1581, "startTime": "1988-05-22T23:00:00", "endTime": "1989-03-15T00:00:00" }, "resultQuality": { "ob_id": 1424, "explanation": "NASA data quality controlled data", "passesTest": true, "resultTitle": "CEDA Data Quality Statement", "date": "2014-01-25" }, "validTimePeriod": null, "procedureAcquisition": null, "procedureComputation": { "ob_id": 19214, "uuid": "fd9ff328352f44a5acfd30e83828a40a", "short_code": "comp", "title": "AASE: Analyses of temperature, pressure, geopotential height, and horizontal wind components on constant pressure surfaces", "abstract": "The data is generated using the Goddard Space Flight Center (GSFC) STRATAN data assimilation scheme to improve upon an initial, first guess field. " }, "procedureCompositeProcess": null, "imageDetails": [ 81 ], "discoveryKeywords": [ { "ob_id": 1138, "name": "NDGO0003" } ], "permissions": [ { "ob_id": 2521, "accessConstraints": null, "accessCategory": "public", "accessRoles": null, "label": "public: None group", "licence": { "ob_id": 2, "licenceURL": "https://artefacts.ceda.ac.uk/licences/missing_licence.pdf", "licenceClassifications": [ { "ob_id": 2, "classification": "unstated" } ] } } ], "projects": [ { "ob_id": 5465, "uuid": "a545ae51081160501bd467fcf64ac54b", "short_code": "proj", "title": "Airborne Arctic Stratospheric Expedition (AASE)", "abstract": "A NASA aircraft expedition based in Stavanger, Norway during January and February 1989. The data consist of various chemical composition and meteorological measurements collected on board the NASA ER-2 and DC-8 aircraft, ozonesonde soundings from 3 stations (Angmagssalik and Scoresbysund, Greenland and Lerwick, UK), aerosol and temperature profiles from the SAM II satellite, global gridded NIMBUS 7 TOMS ozone column and selected radiosonde soundings from stations in the region of the experiment. This dataset is public." } ], "inspireTheme": [], "topicCategory": [], "phenomena": [], "vocabularyKeywords": [], "identifier_set": [], "observationcollection_set": [ { "ob_id": 5462, "uuid": "19a2a820690fbc271fef38957dc3ca83", "short_code": "coll", "title": "Airborne Arctic Stratospheric Expedition (AASE) 89: Chemical and Dynamical Atmospheric Measurements", "abstract": "The Airborne Arctic Stratospheric Expedition (AASE) which was based in Stavanger, Norway during January and February, 1989, was designed to study the production and loss mechanisms of ozone in the north polar stratospheric environment, and the effect on ozone distribution of the Arctic polar vortex and of the cold temperatures associated with the formation of Polar Stratospheric Clouds (PSC). \r\n\r\nThe dataset collection consists of measurements of chemical and dynamical parameters collected onboard the NASA ER-2 and DC-8 aircraft (for example, ClO, BrO, HCl, O3, NOx, N2, HNO3 and CH4, whole air samples and aerosol measurements). In addition, there are ozonesonde soundings from three stations (Angmagssalik and Scoresbysund, Greenland, and Lerwick, U.K.), aerosol and temperature profiles from NASA's SAM II satellite, and selected radiosonde soundings from stations in the region of the experiment.\r\n\r\nTheory teams provided calculations of: potential vorticity along the ER-2 flight path; cross-sections of potential vorticity, temperature, and geopotential heights along the DC-8 flight path; cross-sections of Clx, Fx, HCl, HNO3, and NOy along the DC-8 flight path; global grid point values of temperature, geopotential heights, and horizontal winds on selected pressure surfaces; northern hemispheric grid point values of potential vorticity and pressure on selected potential temperature surfaces." } ], "responsiblepartyinfo_set": [ 72573, 72567, 72568, 72574, 72570, 72571, 72572, 72569, 72575, 72576 ], "onlineresource_set": [] }, { "ob_id": 19215, "uuid": "630970b6acfa44588e42156393f9a063", "title": "AASE: Analyses of potential vorticity and pressure on constant potential temperature surfaces", "abstract": "The Airborne Arctic Stratospheric Expedition (AASE) which was based in Stavanger, Norway during January and February, 1989, was designed to study the production and loss mechanisms of ozone in the north polar stratospheric environment, and the effect on ozone distribution of the Arctic polar vortex and of the cold temperatures associated with the formation of Polar Stratospheric Clouds (PSC). \r\n\r\nThis dataset contains analyses of potential vorticity and pressure on constant potential temperature surfaces.", "creationDate": "2022-07-22T09:15:57.183554", "lastUpdatedDate": "2022-07-22T09:15:57.272326", "latestDataUpdateTime": "1998-07-24T11:38:16", "updateFrequency": "notPlanned", "dataLineage": "Data were collected during January and February 1988-1989.\r\nCopy of CR-ROM published by NASA. 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" }, "procedureCompositeProcess": null, "imageDetails": [ 81 ], "discoveryKeywords": [ { "ob_id": 1138, "name": "NDGO0003" } ], "permissions": [ { "ob_id": 2521, "accessConstraints": null, "accessCategory": "public", "accessRoles": null, "label": "public: None group", "licence": { "ob_id": 2, "licenceURL": "https://artefacts.ceda.ac.uk/licences/missing_licence.pdf", "licenceClassifications": [ { "ob_id": 2, "classification": "unstated" } ] } } ], "projects": [ { "ob_id": 5465, "uuid": "a545ae51081160501bd467fcf64ac54b", "short_code": "proj", "title": "Airborne Arctic Stratospheric Expedition (AASE)", "abstract": "A NASA aircraft expedition based in Stavanger, Norway during January and February 1989. The data consist of various chemical composition and meteorological measurements collected on board the NASA ER-2 and DC-8 aircraft, ozonesonde soundings from 3 stations (Angmagssalik and Scoresbysund, Greenland and Lerwick, UK), aerosol and temperature profiles from the SAM II satellite, global gridded NIMBUS 7 TOMS ozone column and selected radiosonde soundings from stations in the region of the experiment. This dataset is public." } ], "inspireTheme": [], "topicCategory": [], "phenomena": [], "vocabularyKeywords": [], "identifier_set": [], "observationcollection_set": [ { "ob_id": 5462, "uuid": "19a2a820690fbc271fef38957dc3ca83", "short_code": "coll", "title": "Airborne Arctic Stratospheric Expedition (AASE) 89: Chemical and Dynamical Atmospheric Measurements", "abstract": "The Airborne Arctic Stratospheric Expedition (AASE) which was based in Stavanger, Norway during January and February, 1989, was designed to study the production and loss mechanisms of ozone in the north polar stratospheric environment, and the effect on ozone distribution of the Arctic polar vortex and of the cold temperatures associated with the formation of Polar Stratospheric Clouds (PSC). \r\n\r\nThe dataset collection consists of measurements of chemical and dynamical parameters collected onboard the NASA ER-2 and DC-8 aircraft (for example, ClO, BrO, HCl, O3, NOx, N2, HNO3 and CH4, whole air samples and aerosol measurements). In addition, there are ozonesonde soundings from three stations (Angmagssalik and Scoresbysund, Greenland, and Lerwick, U.K.), aerosol and temperature profiles from NASA's SAM II satellite, and selected radiosonde soundings from stations in the region of the experiment.\r\n\r\nTheory teams provided calculations of: potential vorticity along the ER-2 flight path; cross-sections of potential vorticity, temperature, and geopotential heights along the DC-8 flight path; cross-sections of Clx, Fx, HCl, HNO3, and NOy along the DC-8 flight path; global grid point values of temperature, geopotential heights, and horizontal winds on selected pressure surfaces; northern hemispheric grid point values of potential vorticity and pressure on selected potential temperature surfaces." } ], "responsiblepartyinfo_set": [ 72581, 72577, 72578, 72582, 72579, 72583, 72584, 72580, 72585, 72586 ], "onlineresource_set": [] }, { "ob_id": 19217, "uuid": "bb3f4edaa9da4593b779833720f2bfa3", "title": "AASE: Measurements Meteorological Measurement System on the NASA ER-2 Aircraft", "abstract": "The Airborne Arctic Stratospheric Expedition (AASE) which was based in Stavanger, Norway during January and February, 1989, was designed to study the production and loss mechanisms of ozone in the north polar stratospheric environment, and the effect on ozone distribution of the Arctic polar vortex and of the cold temperatures associated with the formation of Polar Stratospheric Clouds (PSC). \r\n\r\nThis dataset contains measurements from the meteorological meteorological measurement system on the NASA ER-2 Aircraft.", "creationDate": "2022-07-22T09:15:57.183554", "lastUpdatedDate": "2022-07-22T09:15:57.272326", "latestDataUpdateTime": "2024-09-11T13:11:34", "updateFrequency": "notPlanned", "dataLineage": "Data were collected during January and February, 1988-1989 onboard the NASA ER-2.\r\nCopy of CR-ROM published by NASA. 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The project will utillize the NERC Facility for Airborne Atmospheric Measurements reaserch aircraft ( FAAM) and a Global Atmosheric Watch station , with 100m research tower, in an undisturbed rainforest in Sabah Malaysia.\r\n\r\nThe objectives of the OP3-Danum-08 project are (i) to understand how emissions of reactive trace gases from a tropical rain forest mediate the production and processing of oxidants and particles in the troposphere, and (ii) to better understand the impact of these processes on local, regional and global scale atmospheric composition, chemistry and climate.\r\n\r\n\r\nThe field campaign phase of the project consists of 2 separate ground-based measurement periods at the Danum Valley Research centre (7th April - 4th May 2008 and 21st June - 27th July 2008). The second of these campaigns will involve concurrent observations above the ground based site aboard the FAAM BAe 146 aircraft, a collaboration between the Met Office(TM) and the Natural Environment Research Council (NERC). There was also a ground based measurement period from 10th May - 12th June based at the Sabahmas Estate oil plantation, which was part of the APPRAISE funded ACES project. Data from all 4 parts of the project can be found in the OP3 archive.\r\n\r\nThe OP3 project is led by Professor Nick Hewitt (University of Lancaster)" } ], "responsiblepartyinfo_set": [ 73170, 73172, 73169, 73173, 73174, 73175, 73176, 73171, 180551, 180552 ], "onlineresource_set": [] }, { "ob_id": 19348, "uuid": "0ec480c2fb1e4265890d8b2039f483af", "title": "ECMWF trajectories model data for prime", "abstract": "Datasets of 5 day back trajectories have been computed on a routine basis using analyses from the European Centre for Medium Range Weather Forecasting (ECMWF). 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The flight was a transit from Boscombe to Prestwick.\r\n\r\nThe main purpose was to reposition the aircraft at Prestwick for the ACTO detachment. The instruments were operated as an additional test. The data was also monitored for evidence of filaments of upper tropospheric / lower stratospheric air that had been forecast on the 3/5/2000. However, the forecast from 4/5/2000 had suggested that the air would have moved too far North. Thus as expected, there was no evidence of very dry, ozone-rich air, during the flight.\r\n\r\nThere were several instrument errors prior to flight and these were not resolved during the flight. The peroxide instrument was not operated. The carbon monoxide was switched on but did not perform sufficiently to give any useful data. The PERCA operator was not happy with the performance of the instrument (low chain length). The PAN GC was operated on one channel only. The ozone instrument worked OK but it was not displayed correctly on HORACE. The instrument operator therefore made investigations towards the end of the flight in order to understand the problem. The remaining chemistry instrumentation (UEA NOxy, MRF NOx box and the UEA formaldehyde, Leeds hydrocarbon GC) all worked well. \r\n\r\nMeteorology\r\n\r\nThe meteorological situation was dominated by a high pressure system that was centred to the North West of Scotland. A weak warm front was shown on the midnight analysis over the south of England: no rain was forecast on the PGM. Areas of stratocumulus and altocumulus cloud marked the front. No other notable cloud features were found during the flight. \r\n\r\n\r\n", "creationDate": "2022-07-22T09:15:57.183554", "lastUpdatedDate": "2022-07-22T09:15:57.272326", "latestDataUpdateTime": "2016-06-13T17:06:51", "updateFrequency": "notPlanned", "dataLineage": "Data collected by instruments on-board the MRF C-130 during flight A750. Data acquired by BADC for archiving during the ACTO project.", "removedDataReason": "", "keywords": "UTLS, ACTO, Chemistry, temperature, pressure, wind", "publicationState": "published", "nonGeographicFlag": false, "dontHarvestFromProjects": false, "language": "English", "resolution": "", "status": "completed", "dataPublishedTime": "2006-12-10T03:09:18", "doiPublishedTime": null, "removedDataTime": null, "geographicExtent": { "ob_id": 1607, "bboxName": "preswick to boscombe", "eastBoundLongitude": -1.837, "westBoundLongitude": -4.6142, "southBoundLatitude": 50.7247, "northBoundLatitude": 55.508 }, "verticalExtent": null, "result_field": { "ob_id": 19540, "dataPath": "/badc/ukmo-mrf/data/a750", "oldDataPath": [], "storageLocation": "internal", "storageStatus": "online", "volume": 33326048, "numberOfFiles": 14, "fileFormat": "Data are ASCII formatted" }, "timePeriod": { "ob_id": 5103, "startTime": "2000-05-05T09:50:50", "endTime": "2000-05-05T12:25:10" }, "resultQuality": { "ob_id": 550, "explanation": "unknown.", "passesTest": true, "resultTitle": "CEDA Data Quality Statement", "date": "2014-01-29" }, "validTimePeriod": null, "procedureAcquisition": { "ob_id": 19446, "uuid": "305f2d7916364155a6aee0f7c81bec36", "short_code": "acq", "title": "MRF Flight A750", "abstract": "MRF Flight A750" }, "procedureComputation": null, "procedureCompositeProcess": null, "imageDetails": [ 42, 69 ], "discoveryKeywords": [ { "ob_id": 1138, "name": "NDGO0003" } ], "permissions": [ { "ob_id": 2522, "accessConstraints": null, "accessCategory": "registered", "accessRoles": null, "label": "registered: None group", "licence": { "ob_id": 3, "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/", "licenceClassifications": [ { "ob_id": 3, "classification": "any" } ] } } ], "projects": [ { "ob_id": 14435, "uuid": "7f90dfc24c3b4ce5b4c230996dd2bf62", "short_code": "proj", "title": "UTLS-Ozone: Atmospheric Chemistry and Transport of Ozone (ACTO)", "abstract": "The Atmospheric Chemistry and Transport of Ozone in the UTLS (ACTO) was a round 2 UTLS project led by Stuart Penkett, University of East Anglia.\r\n\r\nThe objectives were:\r\n\r\nTo quantitatively assess the role of in situ chemistry and transport of stratospheric and lower tropospheric air on the ozone budget in the upper troposphere and lower stratosphere, focussing on the North Atlantic in spring and summer.\r\nQuantify the role of in-situ photochemistry (production and destruction) of ozone in layers of different composition through a combination of chemistry measurements.\r\nQuantify the sources of radical species (HOx and ROx) from photolysis of various molecules and to investigate the form and source of NOy in the UTLS region.\r\nAssess the impact of transport and mixing on the ozone budget in the UTLS through the identification of air masses each with a distinct origin and composition and to study their photo-chemical evolution in the upper troposphere and the lower stratosphere.\r\nDetermining the extent to which the existence of layering influences the chemistry of the UTLS and quantifying the impact of mixing between air masses on the photochemical activity at their interfaces.\r\n\r\nMethodology\r\nThe overall methodology was to analyse existing data, to collect new data, including that collected by some new instruments, in a part of the atmosphere rarely examined before (UTLS), and to interpret this data using a range of numerical models.\r\n\r\nData were already collected on the composition and structure of the troposphere as part of OCTA, ACSOE, and TACIA programmes, UTLS-DCFZ and EU-MAXOX during campaigns in the first half of 1999. There was an obvious progression from the objectives of the previous experiments and those of this project. Therefore analysis of the data from these programmes were valuable for the planning of the new measurement campaign, which were collected in the UTLS using the UKMO C-130 during 40 hours flying time, in the spring/summer period of the 2000. Flights were 3-6 hours and did take place in the North Atlantic off northern Britain and were predominantly in the upper troposphere (4 to 11km) with only occasional sorties into the lower stratosphere. Flights were designed to examine the chemical composition and reactivity of different air masses: boundary layer air (marine and (polluted) continental); tropical and subtropical air; upper tropospheric and lower stratospheric air; and polar air. Detailed meteorological and chemical forecast data were obtained from ECMWF, UKMO and NILU. Domain filling trajectory calculations, with forecast wind fields, were used to locate layers and to determine their orientation, whilst the NILU chemical forecast model provided information on the expected chemical composition of the different air masses. To determine the origin, composition and chemical activity of the different air masses found in the UTLS, measurements were made from a large number of tracers, ozone precursors, reactive species and photochemical products." } ], "inspireTheme": [], "topicCategory": [], "phenomena": [ 79823 ], "vocabularyKeywords": [], "identifier_set": [], "observationcollection_set": [ { "ob_id": 431, "uuid": "605b99a139b1162de6a1096a11b0a8b4", "short_code": "coll", "title": "Met Office Met. Research Flight C-130: Airborne atmospheric measurements", "abstract": "The Met. Research Flight (MRF) was a Met Office facility, which operated a well instrumented C-130 Hercules (also referred to as Mk.2 Hercules) aircraft for research purposes. The C-130 was in service from 1972 to 2001 and flew over 1800 research sorties. The large capacity and long endurance of this platform made it ideal for atmospheric research in the areas of cloud physics, atmospheric radiation, atmospheric chemistry, satellite activities, mesoscale meteorology and boundary layer studies.\r\n\r\nThe BADC holds data collected by the C-130 during NERC (Natural Environment Research Council) funded flights, such as those made during ACSOE (Atmospheric Chemistry Studies in the Oceanic Environment) and UTLS (Upper Troposphere - Lower Stratosphere) projects. The basic set of measurements include ozone, nitrogen oxides, water vapour, aerosols, wind, position and temperature. These are often supplemented by project specific measurements.\r\n\r\nThe aircraft was able to operate scientifically throughout the troposphere from a minimum altitude of 15 m (50 ft) where permitted, up to a maximum of 10 km. The aircraft had a maximum working flight time of 12 hours.\r\n\r\nThe C-130 was taken out of service in March 2001 and a new joint NERC-Met Office Facility for Airborne Aircraft Measurements (FAAM) was established operating a BAe-146-301 aircraft." }, { "ob_id": 2322, "uuid": "7ca95b35d9e378c10343f2730a880549", "short_code": "coll", "title": "UTLS-Ozone ACTO: Met Research Flight (MRF) C-130 Hercules aircraft atmospheric chemistry measurements and model output collection", "abstract": "The Atmospheric Chemistry and Transport of Ozone (ACTO) in the UTLS was a round 2 UTLS (Upper Troposphere and Lower Stratosphere) project led by Stuart Penkett, University of East Anglia.\r\n\r\nThis dataset collection contains airborne atmospheric chemistry data collected by the Met Research Flight (MRF) C-130 Hercules aircraft and atmospheric chemistry output.\r\n\r\nData were already collected on the composition and structure of the troposphere as part of OCTA, ACSOE, and TACIA programmes, UTLS-DCFZ and EU-MAXOX during campaigns in the first half of 1999. There was an obvious progression from the objectives of the previous experiments and those of this project. Therefore analysis of the data from these programmes were valuable for the planning of the new measurement campaign, which were collected in the UTLS using the UKMO C-130 during 40 hours flying time, in the spring/summer period of the 2000. Flights were 3-6 hours and did take place in the North Atlantic off northern Britain and were predominantly in the upper troposphere (4 to 11km) with only occasional sorties into the lower stratosphere. Flights were designed to examine the chemical composition and reactivity of different air masses: boundary layer air (marine and (polluted) continental); tropical and subtropical air; upper tropospheric and lower stratospheric air; and polar air. Detailed meteorological and chemical forecast data were obtained from ECMWF, UKMO and NILU. Domain filling trajectory calculations, with forecast wind fields, were used to locate layers and to determine their orientation, whilst the NILU chemical forecast model provided information on the expected chemical composition of the different air masses. To determine the origin, composition and chemical activity of the different air masses found in the UTLS, measurements were made from a large number of tracers, ozone precursors, reactive species and photochemical products." } ], "responsiblepartyinfo_set": [ 73413, 73415, 73416, 73417, 73418, 73419, 73421, 73414, 73435, 73420, 73422 ], "onlineresource_set": [] }, { "ob_id": 19450, "uuid": "2f3b6b38b25d408db4cb8e6fd06d8aeb", "title": "MRF A751 ACTO flight: Airborne atmospheric and chemistry measurements taken on board the Met Office C-130 Hercules aircraft", "abstract": "The Meteorological Research Flight (MRF) was a Met Office facility, which flew a well-instrumented C-130 Hercules aircraft for atmospheric research purposes.\r\n\r\nThis dataset contains airborne atmospheric and chemistry measurements taken on board the Met Office C-130 Hercules aircraft flight A751 for the Atmospheric Chemistry and Transport of Ozone in the upper troposphere-lower stratosphere (UTLS) (ACTO) campaign. The flight was a transit from Boscombe to Prestwick.\r\n\r\nThe main purpose was to investigate a filament of air (with UTLS origins), which had been apparent on the PV forecasts from ECMWF (interpretation by John Methven). The flight was very successful. In particular, the filament of air was located with relative ease. The filament was initially traversed during the ascent to the first level run. The filament position was then confirmed from the water vapour image, details of which were sent to the aircraft via satcom. A rectangular flight plan was carried out at FL230, with legs approximately along the axis of the filament, across the filament and along the outside of the filament. A triangular pattern was flown at the subsequent level, with the final leg running at a slight angle across the filament, such that the edge of the filament was crossed slowly. \r\n\r\nThe filament was apparent in many of the measurements: low humidity, low CN, high ozone (up to around 100ppb), higher PCASP aerosol and high NOy. Other features were apparent near the filament region including air parcels having some evidence of more recent pollution (higher NO and NO2). Hence, further investigation will be required to understand the origins of these parcels. A number of flask samples (37) were also collected for subsequent analysis,\r\n\r\nThere were a few instrument errors prior to flight. The CO and the HCHO were both unserviceable and the FWVS was not fitted. It is hoped that some of the other parameters may be used as tropospheric tracers instead of CO (aerosols, Leeds GC hydrocarbons, bottle sample-hydrocarbons (including methane), bottle sample GC-MS analysis and possible bottle sample CO). \r\n\r\nMeteorology\r\n\r\nThe meteorological situation was dominated by a large ridge of high pressure, stretching from the Azores to Scandinavia. A weak warm front was analysed on the midday Met. Office Chart, oriented from SW to NE, stretching from 50N, 15W to Scandinavia. There was little cloud associated with the front: mainly a line of stratocumulus with some embedded cumulus (the largest having tops at 25,000ft). The main features appeared to be marked by a gradient in humidity, which was apparent on the water vapour satellite image. \"", "creationDate": "2022-07-22T09:15:57.183554", "lastUpdatedDate": "2022-07-22T09:15:57.272326", "latestDataUpdateTime": "2016-06-13T17:06:53", "updateFrequency": "notPlanned", "dataLineage": "Data collected by instruments on-board the MRF C-130 during flight A751. Data acquired by BADC for archiving during the ACTO project.", "removedDataReason": "", "keywords": "UTLS, ACTO, Chemistry, temperature, pressure, wind", "publicationState": "published", "nonGeographicFlag": false, "dontHarvestFromProjects": false, "language": "English", "resolution": "", "status": "completed", "dataPublishedTime": "2006-12-10T03:09:18", "doiPublishedTime": null, "removedDataTime": null, "geographicExtent": { "ob_id": 1607, "bboxName": "preswick to boscombe", "eastBoundLongitude": -1.837, "westBoundLongitude": -4.6142, "southBoundLatitude": 50.7247, "northBoundLatitude": 55.508 }, "verticalExtent": null, "result_field": { "ob_id": 19541, "dataPath": "/badc/ukmo-mrf/data/a751", "oldDataPath": [], "storageLocation": "internal", "storageStatus": "online", "volume": 63110408, "numberOfFiles": 22, "fileFormat": "Data are ASCII formatted" }, "timePeriod": { "ob_id": 5104, "startTime": "2000-05-07T10:41:30", "endTime": "2000-05-07T15:00:00" }, "resultQuality": { "ob_id": 550, "explanation": "unknown.", "passesTest": true, "resultTitle": "CEDA Data Quality Statement", "date": "2014-01-29" }, "validTimePeriod": null, "procedureAcquisition": { "ob_id": 19451, "uuid": "77718c4c93104357b1be3b1ebad729cc", "short_code": "acq", "title": "MRF Flight A751", "abstract": "MRF Flight A751" }, "procedureComputation": null, "procedureCompositeProcess": null, "imageDetails": [ 42, 69 ], "discoveryKeywords": [ { "ob_id": 1138, "name": "NDGO0003" } ], "permissions": [ { "ob_id": 2522, "accessConstraints": null, "accessCategory": "registered", "accessRoles": null, "label": "registered: None group", "licence": { "ob_id": 3, "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/", "licenceClassifications": [ { "ob_id": 3, "classification": "any" } ] } } ], "projects": [ { "ob_id": 14435, "uuid": "7f90dfc24c3b4ce5b4c230996dd2bf62", "short_code": "proj", "title": "UTLS-Ozone: Atmospheric Chemistry and Transport of Ozone (ACTO)", "abstract": "The Atmospheric Chemistry and Transport of Ozone in the UTLS (ACTO) was a round 2 UTLS project led by Stuart Penkett, University of East Anglia.\r\n\r\nThe objectives were:\r\n\r\nTo quantitatively assess the role of in situ chemistry and transport of stratospheric and lower tropospheric air on the ozone budget in the upper troposphere and lower stratosphere, focussing on the North Atlantic in spring and summer.\r\nQuantify the role of in-situ photochemistry (production and destruction) of ozone in layers of different composition through a combination of chemistry measurements.\r\nQuantify the sources of radical species (HOx and ROx) from photolysis of various molecules and to investigate the form and source of NOy in the UTLS region.\r\nAssess the impact of transport and mixing on the ozone budget in the UTLS through the identification of air masses each with a distinct origin and composition and to study their photo-chemical evolution in the upper troposphere and the lower stratosphere.\r\nDetermining the extent to which the existence of layering influences the chemistry of the UTLS and quantifying the impact of mixing between air masses on the photochemical activity at their interfaces.\r\n\r\nMethodology\r\nThe overall methodology was to analyse existing data, to collect new data, including that collected by some new instruments, in a part of the atmosphere rarely examined before (UTLS), and to interpret this data using a range of numerical models.\r\n\r\nData were already collected on the composition and structure of the troposphere as part of OCTA, ACSOE, and TACIA programmes, UTLS-DCFZ and EU-MAXOX during campaigns in the first half of 1999. There was an obvious progression from the objectives of the previous experiments and those of this project. Therefore analysis of the data from these programmes were valuable for the planning of the new measurement campaign, which were collected in the UTLS using the UKMO C-130 during 40 hours flying time, in the spring/summer period of the 2000. Flights were 3-6 hours and did take place in the North Atlantic off northern Britain and were predominantly in the upper troposphere (4 to 11km) with only occasional sorties into the lower stratosphere. Flights were designed to examine the chemical composition and reactivity of different air masses: boundary layer air (marine and (polluted) continental); tropical and subtropical air; upper tropospheric and lower stratospheric air; and polar air. Detailed meteorological and chemical forecast data were obtained from ECMWF, UKMO and NILU. Domain filling trajectory calculations, with forecast wind fields, were used to locate layers and to determine their orientation, whilst the NILU chemical forecast model provided information on the expected chemical composition of the different air masses. To determine the origin, composition and chemical activity of the different air masses found in the UTLS, measurements were made from a large number of tracers, ozone precursors, reactive species and photochemical products." } ], "inspireTheme": [], "topicCategory": [], "phenomena": [ 79823 ], "vocabularyKeywords": [], "identifier_set": [], "observationcollection_set": [ { "ob_id": 431, "uuid": "605b99a139b1162de6a1096a11b0a8b4", "short_code": "coll", "title": "Met Office Met. Research Flight C-130: Airborne atmospheric measurements", "abstract": "The Met. Research Flight (MRF) was a Met Office facility, which operated a well instrumented C-130 Hercules (also referred to as Mk.2 Hercules) aircraft for research purposes. The C-130 was in service from 1972 to 2001 and flew over 1800 research sorties. The large capacity and long endurance of this platform made it ideal for atmospheric research in the areas of cloud physics, atmospheric radiation, atmospheric chemistry, satellite activities, mesoscale meteorology and boundary layer studies.\r\n\r\nThe BADC holds data collected by the C-130 during NERC (Natural Environment Research Council) funded flights, such as those made during ACSOE (Atmospheric Chemistry Studies in the Oceanic Environment) and UTLS (Upper Troposphere - Lower Stratosphere) projects. The basic set of measurements include ozone, nitrogen oxides, water vapour, aerosols, wind, position and temperature. These are often supplemented by project specific measurements.\r\n\r\nThe aircraft was able to operate scientifically throughout the troposphere from a minimum altitude of 15 m (50 ft) where permitted, up to a maximum of 10 km. The aircraft had a maximum working flight time of 12 hours.\r\n\r\nThe C-130 was taken out of service in March 2001 and a new joint NERC-Met Office Facility for Airborne Aircraft Measurements (FAAM) was established operating a BAe-146-301 aircraft." }, { "ob_id": 2322, "uuid": "7ca95b35d9e378c10343f2730a880549", "short_code": "coll", "title": "UTLS-Ozone ACTO: Met Research Flight (MRF) C-130 Hercules aircraft atmospheric chemistry measurements and model output collection", "abstract": "The Atmospheric Chemistry and Transport of Ozone (ACTO) in the UTLS was a round 2 UTLS (Upper Troposphere and Lower Stratosphere) project led by Stuart Penkett, University of East Anglia.\r\n\r\nThis dataset collection contains airborne atmospheric chemistry data collected by the Met Research Flight (MRF) C-130 Hercules aircraft and atmospheric chemistry output.\r\n\r\nData were already collected on the composition and structure of the troposphere as part of OCTA, ACSOE, and TACIA programmes, UTLS-DCFZ and EU-MAXOX during campaigns in the first half of 1999. There was an obvious progression from the objectives of the previous experiments and those of this project. Therefore analysis of the data from these programmes were valuable for the planning of the new measurement campaign, which were collected in the UTLS using the UKMO C-130 during 40 hours flying time, in the spring/summer period of the 2000. Flights were 3-6 hours and did take place in the North Atlantic off northern Britain and were predominantly in the upper troposphere (4 to 11km) with only occasional sorties into the lower stratosphere. Flights were designed to examine the chemical composition and reactivity of different air masses: boundary layer air (marine and (polluted) continental); tropical and subtropical air; upper tropospheric and lower stratospheric air; and polar air. Detailed meteorological and chemical forecast data were obtained from ECMWF, UKMO and NILU. Domain filling trajectory calculations, with forecast wind fields, were used to locate layers and to determine their orientation, whilst the NILU chemical forecast model provided information on the expected chemical composition of the different air masses. To determine the origin, composition and chemical activity of the different air masses found in the UTLS, measurements were made from a large number of tracers, ozone precursors, reactive species and photochemical products." } ], "responsiblepartyinfo_set": [ 73436, 73438, 73439, 73440, 73441, 73442, 73443, 73437, 73444, 73445, 73446, 73459, 73460, 73457, 73461, 73462, 73458, 73456 ], "onlineresource_set": [] }, { "ob_id": 19454, "uuid": "f944afec17bf493e92e347b26f35d477", "title": "MRF A752 ACTO flight: Airborne atmospheric and chemistry measurements taken on board the Met Office C-130 Hercules aircraft", "abstract": "The Meteorological Research Flight (MRF) was a Met Office facility, which flew a well-instrumented C-130 Hercules aircraft for atmospheric research purposes.\r\n\r\nThis dataset contains airborne atmospheric and chemistry measurements taken on board the Met Office C-130 Hercules aircraft flight A752 for the Atmospheric Chemistry and Transport of Ozone in the upper troposphere-lower stratosphere (UTLS) (ACTO) campaign. The flight was located over the Irish sea.\r\n\r\nThe purpose of the flight was to investigate various filaments of air in the upper troposphere. These were to include uplifted, polluted air from Europe; dry ozone-rich air of stratospheric / upper tropospheric origins and high relative humidity air from the marine boundary layer. \r\n\r\nThe different filaments did appear to be found but further post-flight analysis will be required to confirm the origins. Polluted air was noted with higher NOx mixing ratios. A filament of dry ozone-rich air was also found but at a more southerly position than forecast: it was not investigated in detail but flown through on an approximately Northward leg (i.e. an across-filament run). High relative humidity air was observed at the northern end of the flight track, as forecast. This air had ozone mixing ratios, which were lower than those observed on any of the earlier flights (down to a minimum of around 35 ppb), quite consistent with air of clean marine origins.\r\n\r\nOne interesting feature that was observed, between the high-ozone/low relative humidity air and the low ozone/high relative humidity air, was an area of high relative humidity and relatively high ozone (around 65 ppb). This was clearly correlated with a small but notable increase in peroxide and a good peroxy radical signal: i.e. a region indicating notable ozone loss. This was not one of the regions forecast to be of particular interest but nevertheless it may be very interesting.", "creationDate": "2022-07-22T09:15:57.183554", "lastUpdatedDate": "2022-07-22T09:15:57.272326", "latestDataUpdateTime": "2016-06-13T17:06:57", "updateFrequency": "notPlanned", "dataLineage": "Data collected by instruments on-board the MRF C-130 during flight A752. 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There was an obvious progression from the objectives of the previous experiments and those of this project. Therefore analysis of the data from these programmes were valuable for the planning of the new measurement campaign, which were collected in the UTLS using the UKMO C-130 during 40 hours flying time, in the spring/summer period of the 2000. Flights were 3-6 hours and did take place in the North Atlantic off northern Britain and were predominantly in the upper troposphere (4 to 11km) with only occasional sorties into the lower stratosphere. Flights were designed to examine the chemical composition and reactivity of different air masses: boundary layer air (marine and (polluted) continental); tropical and subtropical air; upper tropospheric and lower stratospheric air; and polar air. Detailed meteorological and chemical forecast data were obtained from ECMWF, UKMO and NILU. Domain filling trajectory calculations, with forecast wind fields, were used to locate layers and to determine their orientation, whilst the NILU chemical forecast model provided information on the expected chemical composition of the different air masses. To determine the origin, composition and chemical activity of the different air masses found in the UTLS, measurements were made from a large number of tracers, ozone precursors, reactive species and photochemical products." } ], "inspireTheme": [], "topicCategory": [], "phenomena": [ 79823 ], "vocabularyKeywords": [], "identifier_set": [], "observationcollection_set": [ { "ob_id": 431, "uuid": "605b99a139b1162de6a1096a11b0a8b4", "short_code": "coll", "title": "Met Office Met. Research Flight C-130: Airborne atmospheric measurements", "abstract": "The Met. Research Flight (MRF) was a Met Office facility, which operated a well instrumented C-130 Hercules (also referred to as Mk.2 Hercules) aircraft for research purposes. The C-130 was in service from 1972 to 2001 and flew over 1800 research sorties. The large capacity and long endurance of this platform made it ideal for atmospheric research in the areas of cloud physics, atmospheric radiation, atmospheric chemistry, satellite activities, mesoscale meteorology and boundary layer studies.\r\n\r\nThe BADC holds data collected by the C-130 during NERC (Natural Environment Research Council) funded flights, such as those made during ACSOE (Atmospheric Chemistry Studies in the Oceanic Environment) and UTLS (Upper Troposphere - Lower Stratosphere) projects. The basic set of measurements include ozone, nitrogen oxides, water vapour, aerosols, wind, position and temperature. These are often supplemented by project specific measurements.\r\n\r\nThe aircraft was able to operate scientifically throughout the troposphere from a minimum altitude of 15 m (50 ft) where permitted, up to a maximum of 10 km. The aircraft had a maximum working flight time of 12 hours.\r\n\r\nThe C-130 was taken out of service in March 2001 and a new joint NERC-Met Office Facility for Airborne Aircraft Measurements (FAAM) was established operating a BAe-146-301 aircraft." }, { "ob_id": 2322, "uuid": "7ca95b35d9e378c10343f2730a880549", "short_code": "coll", "title": "UTLS-Ozone ACTO: Met Research Flight (MRF) C-130 Hercules aircraft atmospheric chemistry measurements and model output collection", "abstract": "The Atmospheric Chemistry and Transport of Ozone (ACTO) in the UTLS was a round 2 UTLS (Upper Troposphere and Lower Stratosphere) project led by Stuart Penkett, University of East Anglia.\r\n\r\nThis dataset collection contains airborne atmospheric chemistry data collected by the Met Research Flight (MRF) C-130 Hercules aircraft and atmospheric chemistry output.\r\n\r\nData were already collected on the composition and structure of the troposphere as part of OCTA, ACSOE, and TACIA programmes, UTLS-DCFZ and EU-MAXOX during campaigns in the first half of 1999. There was an obvious progression from the objectives of the previous experiments and those of this project. Therefore analysis of the data from these programmes were valuable for the planning of the new measurement campaign, which were collected in the UTLS using the UKMO C-130 during 40 hours flying time, in the spring/summer period of the 2000. Flights were 3-6 hours and did take place in the North Atlantic off northern Britain and were predominantly in the upper troposphere (4 to 11km) with only occasional sorties into the lower stratosphere. Flights were designed to examine the chemical composition and reactivity of different air masses: boundary layer air (marine and (polluted) continental); tropical and subtropical air; upper tropospheric and lower stratospheric air; and polar air. Detailed meteorological and chemical forecast data were obtained from ECMWF, UKMO and NILU. Domain filling trajectory calculations, with forecast wind fields, were used to locate layers and to determine their orientation, whilst the NILU chemical forecast model provided information on the expected chemical composition of the different air masses. To determine the origin, composition and chemical activity of the different air masses found in the UTLS, measurements were made from a large number of tracers, ozone precursors, reactive species and photochemical products." } ], "responsiblepartyinfo_set": [ 73463, 73465, 73466, 73467, 73468, 73469, 73470, 73464, 73471, 73472, 73473, 73474, 73475, 73476, 73477, 73478, 73479, 73480 ], "onlineresource_set": [] }, { "ob_id": 19456, "uuid": "1f7483bf05e843cc94ccdacc004ffe51", "title": "MRF A753 ACTO flight: Airborne atmospheric and chemistry measurements taken on board the Met Office C-130 Hercules aircraft", "abstract": "The Meteorological Research Flight (MRF) was a Met Office facility, which flew a well-instrumented C-130 Hercules aircraft for atmospheric research purposes.\r\n\r\nThis dataset contains airborne atmospheric and chemistry measurements taken on board the Met Office C-130 Hercules aircraft flight A753 for the Atmospheric Chemistry and Transport of Ozone in the upper troposphere-lower stratosphere (UTLS) (ACTO) campaign. The flight was located over the Irish sea.\r\n\r\nThe purpose of the flight was to investigate further the various filaments of air that were sampled in flight A752. That is polluted air, having origins in the Mediterranean region; clean marine boundary layer air; ozone-rich, dry upper tropospheric air (from upper tropospheric jet) and also polluted boundary layer air, which has been uplifted from N. America. The region should be very structured having many different characteristics. The filaments of air were expected to be aligned zonally, sloping downwards to the North. \r\n\r\nThe flight was successful in that some of the filaments were found. However, the filaments were not found in the expected area. During a level hold at FL160 (for air traffic) and at the beginning of the first run at FL170 (NOxy calibrations), a dry ozone-rich filament was sampled. Later during the same run, air with moderately high ozone (around 70 ppb), high relative humidity and elevated peroxide was observed. At the subsequent level (FL240) ozone mixing ratios were generally lower (around 45-50 ppb) and the CN count was elevated (2500). However, during the turn at ca. 12:10 on FL240 (SE corner of the flight), another dry, ozone-rich filament was found. A further filament was expected to the North but this was not found. Towards the end of the flight further investigations were made at FL170, in order to try to find the first area of high ozone air (i.e. the air that was sampled during the first NOxy cal run). This air was found but interestingly, the ozone-rich dry air also correlated with high PAN and black carbon. \r\n\r\nThe instruments generally worked well. The FWVS was adjusted in flight and then found to maintain a good correlation with the GE. Neither the CO nor the HCHO were flown due to previously existing faults. There was a problem with the peroxide pump but this was not until the end of the flight. \r\n\r\nMeteorology\r\n\r\nThe meteorological situation was dominated by high pressure, centred to the north of Scotland. The south of the country was in a more showery regime. However, not much cloud was observed during flight: small cumulus, broken stratocumulus and some cirrus, were observed at times.", "creationDate": "2022-07-22T09:15:57.183554", "lastUpdatedDate": "2022-07-22T09:15:57.272326", "latestDataUpdateTime": "2016-06-13T17:07:00", "updateFrequency": "notPlanned", "dataLineage": "Data collected by instruments on-board the MRF C-130 during flight A753. 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There was an obvious progression from the objectives of the previous experiments and those of this project. Therefore analysis of the data from these programmes were valuable for the planning of the new measurement campaign, which were collected in the UTLS using the UKMO C-130 during 40 hours flying time, in the spring/summer period of the 2000. Flights were 3-6 hours and did take place in the North Atlantic off northern Britain and were predominantly in the upper troposphere (4 to 11km) with only occasional sorties into the lower stratosphere. Flights were designed to examine the chemical composition and reactivity of different air masses: boundary layer air (marine and (polluted) continental); tropical and subtropical air; upper tropospheric and lower stratospheric air; and polar air. Detailed meteorological and chemical forecast data were obtained from ECMWF, UKMO and NILU. Domain filling trajectory calculations, with forecast wind fields, were used to locate layers and to determine their orientation, whilst the NILU chemical forecast model provided information on the expected chemical composition of the different air masses. To determine the origin, composition and chemical activity of the different air masses found in the UTLS, measurements were made from a large number of tracers, ozone precursors, reactive species and photochemical products." } ], "inspireTheme": [], "topicCategory": [], "phenomena": [ 79823 ], "vocabularyKeywords": [], "identifier_set": [], "observationcollection_set": [ { "ob_id": 431, "uuid": "605b99a139b1162de6a1096a11b0a8b4", "short_code": "coll", "title": "Met Office Met. Research Flight C-130: Airborne atmospheric measurements", "abstract": "The Met. Research Flight (MRF) was a Met Office facility, which operated a well instrumented C-130 Hercules (also referred to as Mk.2 Hercules) aircraft for research purposes. The C-130 was in service from 1972 to 2001 and flew over 1800 research sorties. The large capacity and long endurance of this platform made it ideal for atmospheric research in the areas of cloud physics, atmospheric radiation, atmospheric chemistry, satellite activities, mesoscale meteorology and boundary layer studies.\r\n\r\nThe BADC holds data collected by the C-130 during NERC (Natural Environment Research Council) funded flights, such as those made during ACSOE (Atmospheric Chemistry Studies in the Oceanic Environment) and UTLS (Upper Troposphere - Lower Stratosphere) projects. The basic set of measurements include ozone, nitrogen oxides, water vapour, aerosols, wind, position and temperature. These are often supplemented by project specific measurements.\r\n\r\nThe aircraft was able to operate scientifically throughout the troposphere from a minimum altitude of 15 m (50 ft) where permitted, up to a maximum of 10 km. The aircraft had a maximum working flight time of 12 hours.\r\n\r\nThe C-130 was taken out of service in March 2001 and a new joint NERC-Met Office Facility for Airborne Aircraft Measurements (FAAM) was established operating a BAe-146-301 aircraft." }, { "ob_id": 2322, "uuid": "7ca95b35d9e378c10343f2730a880549", "short_code": "coll", "title": "UTLS-Ozone ACTO: Met Research Flight (MRF) C-130 Hercules aircraft atmospheric chemistry measurements and model output collection", "abstract": "The Atmospheric Chemistry and Transport of Ozone (ACTO) in the UTLS was a round 2 UTLS (Upper Troposphere and Lower Stratosphere) project led by Stuart Penkett, University of East Anglia.\r\n\r\nThis dataset collection contains airborne atmospheric chemistry data collected by the Met Research Flight (MRF) C-130 Hercules aircraft and atmospheric chemistry output.\r\n\r\nData were already collected on the composition and structure of the troposphere as part of OCTA, ACSOE, and TACIA programmes, UTLS-DCFZ and EU-MAXOX during campaigns in the first half of 1999. There was an obvious progression from the objectives of the previous experiments and those of this project. Therefore analysis of the data from these programmes were valuable for the planning of the new measurement campaign, which were collected in the UTLS using the UKMO C-130 during 40 hours flying time, in the spring/summer period of the 2000. Flights were 3-6 hours and did take place in the North Atlantic off northern Britain and were predominantly in the upper troposphere (4 to 11km) with only occasional sorties into the lower stratosphere. Flights were designed to examine the chemical composition and reactivity of different air masses: boundary layer air (marine and (polluted) continental); tropical and subtropical air; upper tropospheric and lower stratospheric air; and polar air. Detailed meteorological and chemical forecast data were obtained from ECMWF, UKMO and NILU. Domain filling trajectory calculations, with forecast wind fields, were used to locate layers and to determine their orientation, whilst the NILU chemical forecast model provided information on the expected chemical composition of the different air masses. To determine the origin, composition and chemical activity of the different air masses found in the UTLS, measurements were made from a large number of tracers, ozone precursors, reactive species and photochemical products." } ], "responsiblepartyinfo_set": [ 73484, 73485, 73486, 73487, 73489, 73490, 73491, 73488, 73492, 73493, 73494, 73495, 73496, 73497, 73498, 73499, 73500, 73501 ], "onlineresource_set": [] }, { "ob_id": 19458, "uuid": "8de1173e90fb4d8b8b85f790f923c77c", "title": "MRF A754 ACTO flight: Airborne atmospheric and chemistry measurements taken on board the Met Office C-130 Hercules aircraft", "abstract": "The Meteorological Research Flight (MRF) was a Met Office facility, which flew a well-instrumented C-130 Hercules aircraft for atmospheric research purposes.\r\n\r\nThis dataset contains airborne atmospheric and chemistry measurements taken on board the Met Office C-130 Hercules aircraft flight A754 for the Atmospheric Chemistry and Transport of Ozone in the upper troposphere-lower stratosphere (UTLS) (ACTO) campaign. The flight was located over the North Atlantic.\r\n\r\nThe objective of this flight was to investigate the chemistry and physics of uplifted air, contrasting air masses in the upper troposphere and lower stratosphere. The flight was just under six hours in duration.\r\n\r\nMost instrumentation ran well throughout the flight, in particular the carbon monoxide instrument was operational for the first time during the campaign. \r\n\r\nThree hours and 30 minutes into the flight a PFC fire extinguisher was discharged in the rear van. After investigation, by the load master and the flight leader, a decision was made not to evacuate the van or initiate a smoke and fumes incident. There is some concern that bottle samples taken during the flight may be contaminated.\r\n\r\nThe mission scientists were pleased with the flight: we intercepted a northerly conveyor belt with uplifted Mediterranean air. We were able to do runs parallel with the filaments both to the north and south of the gradient. Throughout the flight the clouds and haze were exactly as expected from the satellite pictures and met. forecasts.", "creationDate": "2022-07-22T09:15:57.183554", "lastUpdatedDate": "2022-07-22T09:15:57.272326", "latestDataUpdateTime": "2016-06-13T17:07:04", "updateFrequency": "notPlanned", "dataLineage": "Data collected by instruments on-board the MRF C-130 during flight A754. 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There was an obvious progression from the objectives of the previous experiments and those of this project. Therefore analysis of the data from these programmes were valuable for the planning of the new measurement campaign, which were collected in the UTLS using the UKMO C-130 during 40 hours flying time, in the spring/summer period of the 2000. Flights were 3-6 hours and did take place in the North Atlantic off northern Britain and were predominantly in the upper troposphere (4 to 11km) with only occasional sorties into the lower stratosphere. Flights were designed to examine the chemical composition and reactivity of different air masses: boundary layer air (marine and (polluted) continental); tropical and subtropical air; upper tropospheric and lower stratospheric air; and polar air. Detailed meteorological and chemical forecast data were obtained from ECMWF, UKMO and NILU. Domain filling trajectory calculations, with forecast wind fields, were used to locate layers and to determine their orientation, whilst the NILU chemical forecast model provided information on the expected chemical composition of the different air masses. To determine the origin, composition and chemical activity of the different air masses found in the UTLS, measurements were made from a large number of tracers, ozone precursors, reactive species and photochemical products." } ], "inspireTheme": [], "topicCategory": [], "phenomena": [ 79823 ], "vocabularyKeywords": [], "identifier_set": [], "observationcollection_set": [ { "ob_id": 431, "uuid": "605b99a139b1162de6a1096a11b0a8b4", "short_code": "coll", "title": "Met Office Met. Research Flight C-130: Airborne atmospheric measurements", "abstract": "The Met. Research Flight (MRF) was a Met Office facility, which operated a well instrumented C-130 Hercules (also referred to as Mk.2 Hercules) aircraft for research purposes. The C-130 was in service from 1972 to 2001 and flew over 1800 research sorties. The large capacity and long endurance of this platform made it ideal for atmospheric research in the areas of cloud physics, atmospheric radiation, atmospheric chemistry, satellite activities, mesoscale meteorology and boundary layer studies.\r\n\r\nThe BADC holds data collected by the C-130 during NERC (Natural Environment Research Council) funded flights, such as those made during ACSOE (Atmospheric Chemistry Studies in the Oceanic Environment) and UTLS (Upper Troposphere - Lower Stratosphere) projects. The basic set of measurements include ozone, nitrogen oxides, water vapour, aerosols, wind, position and temperature. These are often supplemented by project specific measurements.\r\n\r\nThe aircraft was able to operate scientifically throughout the troposphere from a minimum altitude of 15 m (50 ft) where permitted, up to a maximum of 10 km. The aircraft had a maximum working flight time of 12 hours.\r\n\r\nThe C-130 was taken out of service in March 2001 and a new joint NERC-Met Office Facility for Airborne Aircraft Measurements (FAAM) was established operating a BAe-146-301 aircraft." }, { "ob_id": 2322, "uuid": "7ca95b35d9e378c10343f2730a880549", "short_code": "coll", "title": "UTLS-Ozone ACTO: Met Research Flight (MRF) C-130 Hercules aircraft atmospheric chemistry measurements and model output collection", "abstract": "The Atmospheric Chemistry and Transport of Ozone (ACTO) in the UTLS was a round 2 UTLS (Upper Troposphere and Lower Stratosphere) project led by Stuart Penkett, University of East Anglia.\r\n\r\nThis dataset collection contains airborne atmospheric chemistry data collected by the Met Research Flight (MRF) C-130 Hercules aircraft and atmospheric chemistry output.\r\n\r\nData were already collected on the composition and structure of the troposphere as part of OCTA, ACSOE, and TACIA programmes, UTLS-DCFZ and EU-MAXOX during campaigns in the first half of 1999. There was an obvious progression from the objectives of the previous experiments and those of this project. Therefore analysis of the data from these programmes were valuable for the planning of the new measurement campaign, which were collected in the UTLS using the UKMO C-130 during 40 hours flying time, in the spring/summer period of the 2000. Flights were 3-6 hours and did take place in the North Atlantic off northern Britain and were predominantly in the upper troposphere (4 to 11km) with only occasional sorties into the lower stratosphere. Flights were designed to examine the chemical composition and reactivity of different air masses: boundary layer air (marine and (polluted) continental); tropical and subtropical air; upper tropospheric and lower stratospheric air; and polar air. Detailed meteorological and chemical forecast data were obtained from ECMWF, UKMO and NILU. Domain filling trajectory calculations, with forecast wind fields, were used to locate layers and to determine their orientation, whilst the NILU chemical forecast model provided information on the expected chemical composition of the different air masses. To determine the origin, composition and chemical activity of the different air masses found in the UTLS, measurements were made from a large number of tracers, ozone precursors, reactive species and photochemical products." } ], "responsiblepartyinfo_set": [ 73512, 73505, 73506, 73507, 73508, 73510, 73511, 73509, 73513, 73514, 73515, 73516, 73517, 73518, 73519, 73520, 73521, 73522 ], "onlineresource_set": [] }, { "ob_id": 19460, "uuid": "1e4cb62947da412f8629de448c276f47", "title": "MRF A755 ACTO flight: Airborne atmospheric and chemistry measurements taken on board the Met Office C-130 Hercules aircraft", "abstract": "The Meteorological Research Flight (MRF) was a Met Office facility, which flew a well-instrumented C-130 Hercules aircraft for atmospheric research purposes.\r\n\r\nThis dataset contains airborne atmospheric and chemistry measurements taken on board the Met Office C-130 Hercules aircraft flight A755 for the Atmospheric Chemistry and Transport of Ozone in the upper troposphere-lower stratosphere (UTLS) (ACTO) campaign. The flight was located over the North Atlantic.\r\n\r\nThe purpose of the flight was to investigate a dry slot behind a cold front to the North West of Scotland. Many interesting filaments of air were sampled. However, distinct 'stratospheric' filaments were not observed until the end of the flight.\r\n\r\nAfter the initial end of science an interesting filament was sampled with high ozone (around 130ppb). We retraced our steps in order to fly through once more at science speed. This filament, at FL150, was further east than the forecast 'stratospheric air' filaments. \r\n\r\nWhen the air of stratospheric origins was sampled it was found to have high ozone / low relative humidity as expected but it should be noted that there was also high PAN and slightly elevated black carbon. \r\n\r\nThe instruments generally worked well. The FWVS had to have the odd adjustment in flight and then found to maintain a good correlation with the GE; the peroxide began to loose flow at around FL245 and the CO was found to have a small leak of cabin air, which was corrected by 13:50. The CO was also found to be influenced by the flow through the PSAP. The CO did not show much structure during the flight until near the end when the air with stratospheric characteristics was observed. \r\n\r\nMeteorology\r\n\r\nAn anticyclone was centred to the east of the North Sea and a waving front positioned to approximately along 7 west. The frontal cloud was quite apparent on the way to the operational area. However, a flight level (FL140) was found above most of the cloud, for the NOxy calibrations. Once past the frontal cloud there was little cloud in the operational area: just some thin cirrus.", "creationDate": "2022-07-22T09:15:57.183554", "lastUpdatedDate": "2022-07-22T09:15:57.272326", "latestDataUpdateTime": "2016-06-13T17:07:07", "updateFrequency": "notPlanned", "dataLineage": "Data collected by instruments on-board the MRF C-130 during flight A755. Data acquired by BADC for archiving during the ACTO project.", "removedDataReason": "", "keywords": "UTLS, ACTO, Chemistry, temperature, pressure, wind", "publicationState": "published", "nonGeographicFlag": false, "dontHarvestFromProjects": false, "language": "English", "resolution": "", "status": "completed", "dataPublishedTime": "2006-12-10T03:09:18", "doiPublishedTime": null, "removedDataTime": null, "geographicExtent": { "ob_id": 1633, "bboxName": "", "eastBoundLongitude": -3.0, "westBoundLongitude": -10.0, "southBoundLatitude": 55.0, "northBoundLatitude": 60.0 }, "verticalExtent": null, "result_field": { "ob_id": 19545, "dataPath": "/badc/ukmo-mrf/data/a755", "oldDataPath": [], "storageLocation": "internal", "storageStatus": "online", "volume": 108713188, "numberOfFiles": 25, "fileFormat": "Data are ASCII formatted" }, "timePeriod": { "ob_id": 5108, "startTime": "2000-05-14T10:01:35", "endTime": "2000-05-14T10:01:35" }, "resultQuality": { "ob_id": 550, "explanation": "unknown.", "passesTest": true, "resultTitle": "CEDA Data Quality Statement", "date": "2014-01-29" }, "validTimePeriod": null, "procedureAcquisition": { "ob_id": 19461, "uuid": "6a1aa3f3958542d1a233093bae853a6f", "short_code": "acq", "title": "MRF Flight A755", "abstract": "MRF Flight A755" }, "procedureComputation": null, "procedureCompositeProcess": null, "imageDetails": [ 42, 69 ], "discoveryKeywords": [ { "ob_id": 1138, "name": "NDGO0003" } ], "permissions": [ { "ob_id": 2522, "accessConstraints": null, "accessCategory": "registered", "accessRoles": null, "label": "registered: None group", "licence": { "ob_id": 3, "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/", "licenceClassifications": [ { "ob_id": 3, "classification": "any" } ] } } ], "projects": [ { "ob_id": 14435, "uuid": "7f90dfc24c3b4ce5b4c230996dd2bf62", "short_code": "proj", "title": "UTLS-Ozone: Atmospheric Chemistry and Transport of Ozone (ACTO)", "abstract": "The Atmospheric Chemistry and Transport of Ozone in the UTLS (ACTO) was a round 2 UTLS project led by Stuart Penkett, University of East Anglia.\r\n\r\nThe objectives were:\r\n\r\nTo quantitatively assess the role of in situ chemistry and transport of stratospheric and lower tropospheric air on the ozone budget in the upper troposphere and lower stratosphere, focussing on the North Atlantic in spring and summer.\r\nQuantify the role of in-situ photochemistry (production and destruction) of ozone in layers of different composition through a combination of chemistry measurements.\r\nQuantify the sources of radical species (HOx and ROx) from photolysis of various molecules and to investigate the form and source of NOy in the UTLS region.\r\nAssess the impact of transport and mixing on the ozone budget in the UTLS through the identification of air masses each with a distinct origin and composition and to study their photo-chemical evolution in the upper troposphere and the lower stratosphere.\r\nDetermining the extent to which the existence of layering influences the chemistry of the UTLS and quantifying the impact of mixing between air masses on the photochemical activity at their interfaces.\r\n\r\nMethodology\r\nThe overall methodology was to analyse existing data, to collect new data, including that collected by some new instruments, in a part of the atmosphere rarely examined before (UTLS), and to interpret this data using a range of numerical models.\r\n\r\nData were already collected on the composition and structure of the troposphere as part of OCTA, ACSOE, and TACIA programmes, UTLS-DCFZ and EU-MAXOX during campaigns in the first half of 1999. There was an obvious progression from the objectives of the previous experiments and those of this project. Therefore analysis of the data from these programmes were valuable for the planning of the new measurement campaign, which were collected in the UTLS using the UKMO C-130 during 40 hours flying time, in the spring/summer period of the 2000. Flights were 3-6 hours and did take place in the North Atlantic off northern Britain and were predominantly in the upper troposphere (4 to 11km) with only occasional sorties into the lower stratosphere. Flights were designed to examine the chemical composition and reactivity of different air masses: boundary layer air (marine and (polluted) continental); tropical and subtropical air; upper tropospheric and lower stratospheric air; and polar air. Detailed meteorological and chemical forecast data were obtained from ECMWF, UKMO and NILU. Domain filling trajectory calculations, with forecast wind fields, were used to locate layers and to determine their orientation, whilst the NILU chemical forecast model provided information on the expected chemical composition of the different air masses. To determine the origin, composition and chemical activity of the different air masses found in the UTLS, measurements were made from a large number of tracers, ozone precursors, reactive species and photochemical products." } ], "inspireTheme": [], "topicCategory": [], "phenomena": [ 79823 ], "vocabularyKeywords": [], "identifier_set": [], "observationcollection_set": [ { "ob_id": 431, "uuid": "605b99a139b1162de6a1096a11b0a8b4", "short_code": "coll", "title": "Met Office Met. Research Flight C-130: Airborne atmospheric measurements", "abstract": "The Met. Research Flight (MRF) was a Met Office facility, which operated a well instrumented C-130 Hercules (also referred to as Mk.2 Hercules) aircraft for research purposes. The C-130 was in service from 1972 to 2001 and flew over 1800 research sorties. The large capacity and long endurance of this platform made it ideal for atmospheric research in the areas of cloud physics, atmospheric radiation, atmospheric chemistry, satellite activities, mesoscale meteorology and boundary layer studies.\r\n\r\nThe BADC holds data collected by the C-130 during NERC (Natural Environment Research Council) funded flights, such as those made during ACSOE (Atmospheric Chemistry Studies in the Oceanic Environment) and UTLS (Upper Troposphere - Lower Stratosphere) projects. The basic set of measurements include ozone, nitrogen oxides, water vapour, aerosols, wind, position and temperature. These are often supplemented by project specific measurements.\r\n\r\nThe aircraft was able to operate scientifically throughout the troposphere from a minimum altitude of 15 m (50 ft) where permitted, up to a maximum of 10 km. The aircraft had a maximum working flight time of 12 hours.\r\n\r\nThe C-130 was taken out of service in March 2001 and a new joint NERC-Met Office Facility for Airborne Aircraft Measurements (FAAM) was established operating a BAe-146-301 aircraft." }, { "ob_id": 2322, "uuid": "7ca95b35d9e378c10343f2730a880549", "short_code": "coll", "title": "UTLS-Ozone ACTO: Met Research Flight (MRF) C-130 Hercules aircraft atmospheric chemistry measurements and model output collection", "abstract": "The Atmospheric Chemistry and Transport of Ozone (ACTO) in the UTLS was a round 2 UTLS (Upper Troposphere and Lower Stratosphere) project led by Stuart Penkett, University of East Anglia.\r\n\r\nThis dataset collection contains airborne atmospheric chemistry data collected by the Met Research Flight (MRF) C-130 Hercules aircraft and atmospheric chemistry output.\r\n\r\nData were already collected on the composition and structure of the troposphere as part of OCTA, ACSOE, and TACIA programmes, UTLS-DCFZ and EU-MAXOX during campaigns in the first half of 1999. There was an obvious progression from the objectives of the previous experiments and those of this project. Therefore analysis of the data from these programmes were valuable for the planning of the new measurement campaign, which were collected in the UTLS using the UKMO C-130 during 40 hours flying time, in the spring/summer period of the 2000. Flights were 3-6 hours and did take place in the North Atlantic off northern Britain and were predominantly in the upper troposphere (4 to 11km) with only occasional sorties into the lower stratosphere. Flights were designed to examine the chemical composition and reactivity of different air masses: boundary layer air (marine and (polluted) continental); tropical and subtropical air; upper tropospheric and lower stratospheric air; and polar air. Detailed meteorological and chemical forecast data were obtained from ECMWF, UKMO and NILU. Domain filling trajectory calculations, with forecast wind fields, were used to locate layers and to determine their orientation, whilst the NILU chemical forecast model provided information on the expected chemical composition of the different air masses. To determine the origin, composition and chemical activity of the different air masses found in the UTLS, measurements were made from a large number of tracers, ozone precursors, reactive species and photochemical products." } ], "responsiblepartyinfo_set": [ 73533, 73529, 73530, 73526, 73527, 73531, 73528, 73532, 73534, 73535, 73536, 73537, 73538, 73539, 73540, 73541, 73542, 73543 ], "onlineresource_set": [] } ] }