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/4407/?format=api
{ "ob_id": 4407, "uuid": "9f80d42106ba708f92ada730ba321831", "title": "LAND SYNOP reports from land stations collected by the Met Office MetDB System", "abstract": "The land based SYNOP messages measurements describe hourly observations from land stations distributed globally. The observations cumulate in around 60,000 reports a day, giving measurements of parameters such as wind speed and direction, maximum and minimum air temperature, sunshine duration, rainfall accumulation, and cloud type. The data are collected by observation stations worldwide and transmitted within the land SYNOP message.\r\n\r\nData are extracted from the Met Office's MetDB system before being sent to CEDA for archiving. These extractions occur at the 4 principal synoptic periods (00-06, 06-12, 12-18 and 18-00 UT).\r\n\r\nThe dataset contains a range of measurements including:\r\n\r\n - Wind speed and wind direction\r\n - Maximum and minimum air and grass temperature\r\n - Horizontal and vertical visibility\r\n - Snow depth\r\n - Dew-point temperature\r\n - Relative humidity\r\n - 3 -hour pressure change\r\n - Height and period of wind waves\r\n - Cloud height and type\r\n - Radiation in last 24 hours\r\n - Maximum gust period\r\n - Past and present weather\r\n - Rainfall accumulation\r\n - Precipitation amount\r\n - Sunshine duration\r\n\r\nThe wind speed and vertical gust speed are given to the nearest metre per second, and the vertical gust acceleration to the nearest metre per second squared. The wind direction from which the wind blows is measured in Degrees (true). The entry for an east wind is 090, for a south wind it is 180 and so on clockwise. Note that zero values in both wind speed and wind direction fields indicate that there was no wind blowing at the time of observation.\r\n\r\nThe air temperature, grass temperature and dew-point temperature are measured in Kelvin.\r\n\r\nThe cloud height, visibility, snow depth, and wind-wave height are given in metres.\r\n\r\nSunshine duration is recorded over 24 hours and over one hour. For the former, the measurement is in hours, but for the latter the measurement is in minutes.\r\n\r\nThe past weather is recorded as a number between 0-9 which details what the weather has been like in the last 6 hours for observations at 00, 06, 12, 1800 UTC, the last 3 hours for observations at 03, 09, 15, 2100 UTC and the previous hour at any other times. The past weather is only recorded when a manual observation is done at the station.\r\n\r\nThe relative humidity is measured as a percentage.\r\n\r\nDocumentation and Links to further information and references (see linked documentation on this record):\r\nSome general information about surface station readings can be obtained from the abridged version of \"MIDAS Data Users Guide\", provided by the Met Office. This document describes the meteorological surface data in the Met Office Database - MIDAS. This guide is rich in information and is aimed at those with little familiarity with observing methods or instrumentation.\r\n\r\nDetails of the WMO Meteorological codes used at weather observing stations (daily and hourly weather) explain the codes used in this dataset further.", "keywords": "Met Office, MetDB, SYNOP, meteorology", "publicationState": "published", "dataPublishedTime": "2008-08-08T13:58:04", "doiPublishedTime": null, "updateFrequency": "continual", "status": "ongoing", "result_field": { "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/4408/?format=api", "dataPath": "/badc/ukmo-metdb/data/lndsyn", "oldDataPath": [], "storageLocation": "internal", "storageStatus": "online", "volume": 695774316731, "numberOfFiles": 5873, "fileFormat": "Data are BADC-CSV formatted." }, "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/1253/?format=api", "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/1/?format=api", "nonGeographicFlag": false, 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"https://api.catalogue.ceda.ac.uk/api/v2/phenomona/7304/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/7305/?format=api" ], "dataLineage": "Data are extracted from the Met Office's \"metDB\" system and supplied to BADC. These are then processed to generate BADC-CSV files, where possible. METARS and CLIMAT message types are stored as original message types only within http://data.ceda.ac.uk/badc/ukmo-metdb/raw", "removedDataTime": null, "removedDataReason": "", "language": "English", "identifier_set": [ "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2966/?format=api" ], "projects": [ "https://api.catalogue.ceda.ac.uk/api/v2/projects/4405/?format=api" ], "observationcollection_set": [ "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/4355/?format=api" ], "responsiblepartyinfo_set": [ "https://api.catalogue.ceda.ac.uk/api/v2/rpis/20795/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/20797/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/20798/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/20799/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/20801/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/43090/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/43091/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/20796/?format=api" ], "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/4409/?format=api", "procedureCompositeProcess": null, "procedureComputation": null, "permissions": [ { "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2532/?format=api", "useLimitation": null, "accessConstraints": null, "accessCategory": "restricted", "accessRoles": "ukmo_wx", "label": "restricted: ukmo_wx group", "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/ukmo_agreement.pdf", "licenceClassifications": "academic" }, { "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2533/?format=api", "useLimitation": null, "accessConstraints": null, "accessCategory": "restricted", "accessRoles": "ukmo_wx_gov", "label": "restricted: ukmo_wx_gov group", "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/ukmo_agreement_gov.pdf", "licenceClassifications": "policy" } ], "discoveryKeywords": [ { "ob_id": 1138, "name": "NDGO0003" } ] }