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/44290/?format=api
{ "ob_id": 44290, "uuid": "03bcc7d46cc849ff89713bbc398a0af7", "title": "WOEST: Scan and vertically pointing data from the NCAS Ka-Band Mobile Cloud Radar unit 1 deployed at MOD Lyneham, v1.0.0 (20230524-20230906)", "abstract": "RHI (range-height indicator) and PPI (plan-position indicator) scan measurements from the NCAS Ka-Band Mobile Cloud Radar unit 1 deployed at MOD Lyneham. These observations were taken as part of the Wessex Convection (WesCon) experiment - Observing the Evolving Structures of Turbulence (WOEST) between 20230524 and 20230906.\r\n\r\nData products from this deployment are grouped into two sets. \r\nIntensive observing period (IOP) data include RHI (range-height indicator) scans providing vertical cross-sections through individual storm cells.\r\nStandard observing period (SOP) data include a repeating sequence of (a) VPT – a vertically pointing dwell for 18 minutes; (b) VAD – a conical scan at an elevation 8° from zenith with the aim of measuring a vertical wind profile; (c) HSRHI – a sequence of of twelve horizon-to-horizon scans in elevation spaced by 30° in azimuth; and (d) BLPPI – a sequence of conical scans at a set of low elevations. The full SOP sequence was repeated every 30 minutes. \r\nVPT data are grouped into daily files and include measurements from additional vertical dwells during IOPs.\r\n\r\nFor further details of this deployment and the associated dataset please see the internal file metadata.\r\n\r\nThese data conform to the NCAS data standards and are available under the UK Government Open Licence agreement. Acknowledgement of NCAS as the data provider is required whenever and wherever these data are used.", "keywords": "NCAS, observation measurements", "publicationState": "citable", "dataPublishedTime": "2025-05-23T15:24:14", "doiPublishedTime": "2025-08-01T10:31:24.960980", "updateFrequency": "notPlanned", "status": "completed", "result_field": { "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/44291/?format=api", "dataPath": "/badc/ncas-mobile/data/ncas-mobile-ka-band-radar-1/20230524_woest/v1.0.0", "oldDataPath": [], "storageLocation": "internal", "storageStatus": "online", "volume": 367212848072, "numberOfFiles": 18307, "fileFormat": "Data are netCDF formatted." }, "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/12388/?format=api", "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/4784/?format=api", "nonGeographicFlag": false, "phenomena": [ "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50542/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50543/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/59115/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/59145/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/59165/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83944/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83948/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83950/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83951/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83954/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83955/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83961/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84130/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84131/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84132/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84133/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84134/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84135/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84136/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84137/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84138/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84139/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84140/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84141/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84142/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84143/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84144/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84145/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84146/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84147/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84148/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84149/?format=api" ], "dataLineage": "Data were processed and prepared by the project team before delivery to the Centre for Environmental Data Analysis (CEDA).", "removedDataTime": null, "removedDataReason": "", "language": "English", "identifier_set": [ "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/13461/?format=api" ], "projects": [ "https://api.catalogue.ceda.ac.uk/api/v2/projects/43720/?format=api" ], "observationcollection_set": [ "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/43875/?format=api" ], "responsiblepartyinfo_set": [ "https://api.catalogue.ceda.ac.uk/api/v2/rpis/211888/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/211889/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/211890/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/211891/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/211892/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/211893/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/211894/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/211895/?format=api" ], "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/44292/?format=api", "procedureCompositeProcess": null, "procedureComputation": null, "permissions": [ { "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2522/?format=api", "useLimitation": null, "accessConstraints": null, "accessCategory": "registered", "accessRoles": null, "label": "registered: None group", "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/", "licenceClassifications": "any" } ], "discoveryKeywords": [] }