Observation Instance – Django REST framework

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/44270/?format=api

HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 44270,
    "uuid": "17c6b09a5466406c800c2978f17b8372",
    "title": "ESA Sea Ice Climate Change Initiative (Sea_Ice_cci): Northern hemisphere sea ice thickness from ERS-2 on the satellite swath (L2P), v4.0",
    "abstract": "This dataset provides a Climate Data Record of Sea Ice Thickness for the northern hemisphere polar region, derived from the RA (Radar Altimeter) instrument on the ERS-2 satellite (European Remote-sensing Satellite - 2). This product was generated in the context of the ESA Climate Change Initiative Programme (ESA CCI) by the Sea Ice CCI (Sea_Ice_cci) project.\r\n\r\nIt provides daily sea ice thickness data for the months October to April annually on the satellite measurement grid (Level 2P) at the full sensor resolution for the period October 1995 to April 2003.",
    "keywords": "Sea Ice, ESA, CCI, Arctic",
    "publicationState": "published",
    "dataPublishedTime": "2025-11-20T12:09:21",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "pending",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/44958/?format=api",
        "dataPath": "/neodc/esacci/sea_ice/data/sea_ice_thickness/L2P/ers2/v4.0/NH",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 3742232564,
        "numberOfFiles": 1661,
        "fileFormat": "netcdf"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/12491/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/2204/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55387/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/69533/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/69534/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74945/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75274/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75275/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75276/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75277/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75278/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75279/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75280/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75281/?format=api"
    ],
    "dataLineage": "Data were processed by the ESA CCI Sea Ice project team and were supplied to CEDA in the context of the ESA CCI Open Data Portal Project",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/14368/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/14367/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/45082/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/211710/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/211709/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/211711/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/211712/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/211713/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/211714/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/211715/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/211708/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/211716/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/211717/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/44559/?format=api",
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2573/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/esacci_seaice_terms_and_conditions.pdf",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1140,
            "name": "ESACCI"
        }
    ]
}