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/43099/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 43099,
    "uuid": "0211e7f5f6354cfca18fd15b974b2e5f",
    "title": "FAFMIP_HadCM3_HadGEM2-ES",
    "abstract": "Data from HadCM3 and HadGEM2 in supporting the Thresholds for the future of the Greenland ice-sheet project (grant NE/P014976/1)",
    "keywords": "",
    "publicationState": "working",
    "dataPublishedTime": null,
    "doiPublishedTime": null,
    "updateFrequency": "",
    "status": "underDevelopment",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/43098/?format=api",
        "dataPath": "/badc/deposited2024/FAFMIP_HadCM3_HadGEM2-ES",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 195312084544,
        "numberOfFiles": 324,
        "fileFormat": "NetCDF"
    },
    "timePeriod": null,
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/529/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9064/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/13935/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/13936/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/17816/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51186/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51187/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52756/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52761/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52806/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54707/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/57010/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/57025/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/57030/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/57034/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/57035/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/62501/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70444/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70445/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75083/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75084/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75085/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75086/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75087/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75088/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75089/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75090/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75091/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75092/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75093/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75094/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75095/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75096/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75097/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75098/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75099/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75100/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75101/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75102/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75103/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75104/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75105/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75106/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75107/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75108/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75109/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75110/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75111/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75112/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75113/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75114/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75115/?format=api"
    ],
    "dataLineage": "Data were produced by the project team and supplied for archiving at the Centre for Environmental Data Analysis (CEDA). Data picked up from JASMIN group workspace. This is an old dataset so the minimum was done to make it publishable.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [],
    "observationcollection_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/204654/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/204655/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/204656/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/204657/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/204658/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/204659/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/204660/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/204661/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.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": []
}