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/45822/?format=api

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

{
    "ob_id": 45822,
    "uuid": "6c20e3e7407d46e4b52af569d7ef11ff",
    "title": "Operation Weather Rescue: scanned copies of meteorological observation registers and tabulated records from the Carbeth manuscript archives, 1817-1859",
    "abstract": "This dataset contains scanned copies of the meteorological record from the Carbeth manuscript archives, 1817-1859.\r\n\r\nScanned by National Records of Scotland\r\n\r\nNational Records of Scotland reference MET1/4/16\r\n\r\nThe imaging of the volumes was funded by the National Centre for Atmospheric Sciences and effort supported through the GLoSAT project.\r\n\r\nAdditionally, the manuscripts also hold some comparative monthly rain amounts from Glasgow, Bothwell and Greenock.",
    "keywords": "Reports, Weather, Meteorology",
    "publicationState": "citable",
    "dataPublishedTime": "2026-05-20T12:32:38",
    "doiPublishedTime": "2026-05-20T13:51:34",
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://catalogue.ceda.ac.uk/api/v2/observations/45825/?format=api",
        "dataPath": "/badc/operation-weather-rescue/data/SCOTLAND/CARBETH_1817-1859/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 571735468,
        "numberOfFiles": 287,
        "fileFormat": "JPEG"
    },
    "timePeriod": "https://catalogue.ceda.ac.uk/api/v2/times/13129/?format=api",
    "geographicExtent": "https://catalogue.ceda.ac.uk/api/v2/bboxes/5134/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/10201/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/13200/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/20927/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/21954/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/25388/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93266/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93267/?format=api"
    ],
    "dataLineage": "Data were digitised as part of the Operation Weather Rescue project and sent to the Centre for Environmental Data Analysis (CEDA) for archiving.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://catalogue.ceda.ac.uk/api/v2/identifiers/13862/?format=api"
    ],
    "projects": [
        "https://catalogue.ceda.ac.uk/api/v2/projects/27037/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/projects/44102/?format=api"
    ],
    "observationcollection_set": [
        "https://catalogue.ceda.ac.uk/api/v2/observationcollections/28048/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219047/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219048/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219049/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219050/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219051/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219052/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219053/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219054/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219055/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219056/?format=api"
    ],
    "procedureAcquisition": "https://catalogue.ceda.ac.uk/api/v2/acquisitions/45830/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://catalogue.ceda.ac.uk/api/v2/observations/2526/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": []
}