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/43483/?format=api

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

{
    "ob_id": 43483,
    "uuid": "8978580336864f6d8282656d58771b32",
    "title": "ESA Sea Ice Climate Change Initiative (Sea_Ice_cci): Nimbus-5 ESMR Sea Ice Concentration, version 1.1",
    "abstract": "This dataset provides Sea Ice Concentration (SIC) for the polar regions, derived from the Nimbus-5 Electrical Scanning Microwave Radiometer (ESMR), which operated between 1972 and 1977. It is processed with an algorithm using the single channel ESMR data (19.35 GHz), and has been gridded at 25 km grid spacing. This is the second version of the product, v1.1.\r\n\r\nThis product was generated in the context of the ESA Climate Change Initiative Programme (ESA CCI) by the Sea Ice CCI (Sea_Ice_cci) project.",
    "keywords": "Sea Ice,ESA,CCI,Arctic,Antarctic",
    "publicationState": "citable",
    "dataPublishedTime": "2025-03-10T13:47:09",
    "doiPublishedTime": "2025-03-25T15:51:14.860127",
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/43587/?format=api",
        "dataPath": "/neodc/esacci/sea_ice/data/sea_ice_concentration/L3C/esmr/25km/v1.1",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 8142797329,
        "numberOfFiles": 2275,
        "fileFormat": "Data are in NetCDF format."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/12181/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/3728/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/6023/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/13253/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53130/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53131/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66289/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66291/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66292/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66294/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66295/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66351/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66352/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66353/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66354/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66355/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66356/?format=api"
    ],
    "dataLineage": "Data were processed by the ESA CCI Sea Ice project team.\r\n\r\nThe original ESMR tape archive data in swath projection have been made available online by NASA Goddard Earth Sciences Data and Information Services Center (GES DISC).",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/13269/?format=api"
    ],
    "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"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/207050/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/207051/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/207052/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/207053/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/207054/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/207055/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/207056/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/207057/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/208020/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/207058/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/207059/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/207060/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/207061/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/207062/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/39507/?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"
        }
    ]
}