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/45944/?format=api

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

{
    "ob_id": 45944,
    "uuid": "f655bf53327041349519030618d76704",
    "title": "Surface level turbulence derived from MASIN flight measurements for the Arctic Summertime Cyclones Project",
    "abstract": "This dataset contains surface layer turbulent fluxes and meteorological variables derived from Meteorological Airborne Science Instrumentation (MASIN) instrumentation measurements onboard the British Antarctic Survey (BAS) Twin Otter aircraft. These data were based on measurements made during the July-August 2022 field campaign of the Arctic Summertime Cyclones project - funded by NERC Arctic Summertime Cyclones Project (NE/T00682X/1).",
    "keywords": "MASIN, turbulence",
    "publicationState": "published",
    "dataPublishedTime": "2026-05-20T15:36:45",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://catalogue.ceda.ac.uk/api/v2/observations/45945/?format=api",
        "dataPath": "/badc/arcticcyclones/data/ASC_surface_turbulence",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 197009,
        "numberOfFiles": 3,
        "fileFormat": "ASCII text"
    },
    "timePeriod": "https://catalogue.ceda.ac.uk/api/v2/times/13191/?format=api",
    "geographicExtent": "https://catalogue.ceda.ac.uk/api/v2/bboxes/5153/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [],
    "dataLineage": "These data were produced by the project team and the output data were then supplied to CEDA for archiving.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://catalogue.ceda.ac.uk/api/v2/projects/41265/?format=api"
    ],
    "observationcollection_set": [],
    "responsiblepartyinfo_set": [
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219537/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219538/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219539/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219540/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219541/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219542/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219543/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219544/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219545/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219546/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://catalogue.ceda.ac.uk/api/v2/composites/45946/?format=api",
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://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": []
}