GET

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/44109/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 44109,
    "uuid": "09a4b09c9fff46ca9cd438302302adee",
    "title": "WOEST: RHI and PPI scan measurements from the NCAS S-Band CAMRa Weather Radar unit 1 deployed at the NCAS Chilbolton Atmospheric Observatory (CAO) Level 1, v1.0.0 (20230609-20230825)",
    "abstract": "RHI (range-height indicator) and PPI (plan-position indicator) measurements from the NCAS S-Band CAMRa Weather Radar unit 1 deployed at the NCAS Chilbolton Atmospheric Observatory (CAO). These observations were taken as part of the WesCon - Observing the Evolving Structures of Turbulence (WOEST) project between 20230609 and 20230825.\r\nThis dataset contains level 1 processed data products.\r\n\r\nData products from this deployment include: rhi, ppi\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": "2025-05-16T14:41:07",
    "doiPublishedTime": "2025-05-16T14:41:33.346508",
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/44110/?format=api",
        "dataPath": "/badc/ncas-cao/data/ncas-radar-camra-1/20230602_woest/v1.0.0",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 64571632554,
        "numberOfFiles": 8464,
        "fileFormat": "Data are netCDF formatted."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/12325/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/4761/?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/59145/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83941/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83942/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83943/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83944/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83945/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83946/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83947/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83948/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83949/?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/83952/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83953/?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/83956/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83957/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83958/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83959/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83960/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83961/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83962/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83963/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83964/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83965/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83966/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83967/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83968/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83969/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83970/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83971/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83972/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83973/?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/13389/?format=api"
    ],
    "projects": [],
    "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/210970/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/210971/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/210972/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/210973/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/210974/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/210975/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/210976/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/210977/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/44111/?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": []
}