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/46092/?format=api

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

{
    "ob_id": 46092,
    "uuid": "d61136bca15d4e3f8547c4b539fb5656",
    "title": "JULES-Peat model outputs simulating the formation and development of the Cuvette Centrale peatlands, Congo Basin (20,000 BP to 60 BP / 18,000 BCE to 1940 CE)",
    "abstract": "This dataset contains model outputs which simulate the formation and development of the Central Congo Basin peatlands. The model used was JULES-Peat, a new version of the Joint UK Land Environment Simulator (JULES), the land surface component of the UK Earth System Model.\r\n\r\nTen simulations were run under conditions representing those in the Central Congo Basin peatlands over the past 20,000 years, introducing new changes to the model in each new simulation. Details of the ten model runs, files used, and code changes can be found in the document Congo_Peat_JULES_runs_details. The files used to run JULES can be found in the Run_JULES_u-an231 directory.\r\n\r\nThe temporal range of the data is reported in years before present (BP), where present is the year 2000 CE. 20,000 BP to 60 BP is equivalent to 18,000 BCE to 1940 CE.\r\n\r\nThis dataset has one related publication: \"Improving the representation of tropical peatland processes in the JULES land surface model using data from the Central Congo Basin\", Cook et al. 2026 (linked in the documentation section).\r\n\r\nThis dataset was produced as part of the Natural Environment Research Council (NERC) project CongoPeat: Past, Present and Future of the Peatlands of the Central Congo Basin (grant reference: NE/R016860/1). The modelling study was carried out by Peter Anthony Cook at the Global Systems Institute, University of Exeter, Exeter, UK.",
    "keywords": "CongoPeat, Tropical Peatlands, Carbon Store, JULES-Peat Model, Paleo Climate Simulations, Vulnerability of Peatlands, Central Congo Basin, NE/R016860/1",
    "publicationState": "published",
    "dataPublishedTime": "2026-08-20T12:55:24",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://catalogue.ceda.ac.uk/api/v2/observations/46149/?format=api",
        "dataPath": "/badc/congopeat/data/Congo_Peat_JULES_Runs",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 29143537667,
        "numberOfFiles": 186,
        "fileFormat": "NetCDF"
    },
    "timePeriod": "https://catalogue.ceda.ac.uk/api/v2/times/13319/?format=api",
    "geographicExtent": "https://catalogue.ceda.ac.uk/api/v2/bboxes/5194/?format=api",
    "nonGeographicFlag": false,
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        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93738/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93739/?format=api",
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    ],
    "dataLineage": "Data were generated using JULES-Peat, a new version of the Joint UK Land Environment Simulator (JULES), the land surface component of the UK Earth System Model, to simulate the formation and development of the peatlands.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://catalogue.ceda.ac.uk/api/v2/projects/46093/?format=api"
    ],
    "observationcollection_set": [],
    "responsiblepartyinfo_set": [
        "https://catalogue.ceda.ac.uk/api/v2/rpis/220188/?format=api",
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        "https://catalogue.ceda.ac.uk/api/v2/rpis/220560/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": "https://catalogue.ceda.ac.uk/api/v2/computations/46189/?format=api",
    "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, attribution required"
        }
    ],
    "discoveryKeywords": []
}