Observation Instance
Get a list of Observation objects.
### Available end points:
- `/observations/` - Will list all Results in the database
- `/observations.json` - Will return all Results in json format. This can
also be achieved by using the accept header. `application/json`
- `/observations/<object_id>/` - Returns Results object with that id
### Available Methods:
- `GET`
- `HEAD`
### Available filters:
- `title`
- `uuid`
- `keywords`
- `status`
- `result_field`
- `discoveryKeywords`
- `updateFrequency`
- `nonGeographicFlag`
- `publicationState`
- `permissions`
### How to use filters:
These filters can be used like django query filters using __ for related model relationships.
- `/observations/?uuid=d594d53df2612bbd89c2e0e770b5c1a0`
- `/observations/?status=completed`
- `/observations/?results_field__dataPath__startswith=/neodc/esacci`
- `/observations/?discoveryKeywords__name=ESACCI`
- `/observations/?nonGeographicFlag=True`
Filters can be stacked to build an 'AND' relationship. E.g.
- `/observations/?publicationState__in=published,citable&nonGeographicFlag=True`
- `/observations/?publicationState__in=published,citable&discoveryKeyword__name=NDGO0003`
GET /api/v2/observations/40950/?format=api
{ "ob_id": 40950, "uuid": "0240963d5ca74580821af97b30a67c7f", "title": "HadCM3 Climate Simulation - suppressed thermohaline circulation experiment.", "abstract": "The Thermohaline Circulation simulation dataset was produced to investigate the response of the HadCM3 model to a suppression of the thermohaline circulation in the Atlantic Ocean. The suppression was induced by a strong initial perturbation to the salinity distribution in the upper layer of the northern North Atlantic. The model was then allowed to adjust freely.\r\n \r\n The Thermohaline Circulation simulation data contained in this dataset were used to investigate the response of HadCM3 to a significant increase in the freshwater influx to the ocean thus weaking the thermohaline circulation. The HadCM3 model was used by the Hadley Centre to provide input for the IPCC Third Assessment Report.\r\n \r\n Data members run for this experiment: abpsp\r\n\r\n Boundary conditions: Fixed forcing representative of late nineteenth century conditions as per the HadCM3 control run.\r\nReferences: \r\nVellinga, M., R.A. Wood and J.M. Gregory (2002) Processes governing the recovery of a perturbed thermohaline circulation in HadCM3. Journal of Climate, Vol 15, 764-780.\r\nJohns, T.C., J.M. Gregory, W.J. Ingram, C.E. Johnson, A. Jones, J.A. Lowe, J.F.B. Mitchell, D.L. Roberts, D.M.H Sexton, D.S Stevenson, S.F.B. Tett, M.J. Woodage (2003) Anthropogenic climate change for 1860 to 2100 simulated with the HadCM3 model under updated emissions scenarios. Climate Dynamics, pp583-612.\r\n\r\n\r\n Initial conditions: The model was initialised using the conditions from 1991 of the HadCM3 control run. These conditions were perturbed by producing a weakened thermohaline circulation in the model. This was achieved by replacing the salinity field in the top 800m of the northern North Atlantic [(50-90 degrees N) x (80 degrees W to 20 degrees E)] with a vertical profile that is much fresher and has a deeper pycnocline. On average the water in the area of the perturbation is made 2 PSU fresher. Assuming a reference salinity of 35 PSU, the area would have to receive a freshwater pulse of about 16 Sv yr to experience this freshening. Conservation of salt was assured by globally redistributing the salt taken out of the North Atlantic, increasing salinity everywhere by about 0.01 PSU. The model was allowed to adjust freely to the new salinity field.\r\n\r\n More detailed metadata on the model configuration and parameters is available in XML format.", "keywords": "HadCM3-THC, Thermohaline Circulation, HadCM3, forcings", "publicationState": "published", "dataPublishedTime": "2024-04-16T08:08:03", "doiPublishedTime": null, "updateFrequency": "notPlanned", "status": "completed", "result_field": { "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/40951/?format=api", "dataPath": "/badc/hadcm3/data/HadCM3_THC/", "oldDataPath": [], "storageLocation": "internal", "storageStatus": "online", "volume": 271680429193, "numberOfFiles": 9625, "fileFormat": "HadCM3 data is provided in PP (post processing) format." }, "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/11377/?format=api", "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/4017/?format=api", "nonGeographicFlag": false, "phenomena": [ 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"https://api.catalogue.ceda.ac.uk/api/v2/phenomona/72282/?format=api" ], "dataLineage": "Data from the UK Met Office Hadley Centre. Dataset directory structure was reordered by CEDA staff in November 2023 to place experiment runs within a directory of their associated experiment.", "removedDataTime": null, "removedDataReason": "", "language": "English", "identifier_set": [], "projects": [ "https://api.catalogue.ceda.ac.uk/api/v2/projects/13847/?format=api" ], "observationcollection_set": [ "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/3791/?format=api" ], "responsiblepartyinfo_set": [ "https://api.catalogue.ceda.ac.uk/api/v2/rpis/199105/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/199106/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/199107/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/199108/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/199109/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/199110/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/199111/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/199112/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/199113/?format=api" ], "procedureAcquisition": null, "procedureCompositeProcess": null, "procedureComputation": "https://api.catalogue.ceda.ac.uk/api/v2/computations/40952/?format=api", "permissions": [ { "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2613/?format=api", "useLimitation": null, "accessConstraints": null, "accessCategory": "restricted", "accessRoles": "link", "label": "restricted: link group", "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/ukmo_agreement.pdf", "licenceClassifications": "academic" } ], "discoveryKeywords": [] }