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/43485/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 43485,
    "uuid": "c701076b44c14a918f7cdb9641bf2d78",
    "title": "Benthic images recorded by a Remotely Operated Vehicle video camera during cruise JC241 in the eastern Clarion-Clipperton Zone (Pacific Ocean, 2023)",
    "abstract": "A collection of video images was obtained using an oblique-looking camera mounted on the UK ISIS Remotely Operated Vehicle (ROV), deployed from the RRS James Cook during cruise JC241 in the abyssal plain (~4700 m depth) of the Clarion-Clipperton Zone, Pacific Ocean, in 2023. The images were obtained in an area that included a site disturbed by a deep-sea mining machine in 1979. The mining machine (9 m wide, 14 m long, 4.5 m high) was operated by the Ocean Minerals Company (OMCO) from the ship Hughes Glomar Explorer on the seafloor between 15 and 18 March 1979 at a site centred 13°44'N 126°13.5'W. The videos show the disturbance caused by the past mining activities. The data were collected by scientists from the National Oceanography Centre, Southampton, UK as part of the NERC-funded Seabed Mining And Resilience To EXperimental impact (SMARTEX) project (NE/T003537/1).",
    "keywords": "",
    "publicationState": "citable",
    "dataPublishedTime": "2025-02-11T16:58:53",
    "doiPublishedTime": "2025-02-11T16:58:53",
    "updateFrequency": "",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/43484/?format=api",
        "dataPath": "/bodc/deposits01/soc250721",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 47926427961,
        "numberOfFiles": 15,
        "fileFormat": ".mp4 and .csv"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/12071/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/4695/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [],
    "dataLineage": "The data are archived on the British Oceanographic Data Centre (BODC)'s space at the Centre for Environmental Data Analysis (CEDA) and assigned a DOI. No quality control procedures were applied by BODC.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/13240/?format=api"
    ],
    "projects": [],
    "observationcollection_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/207067/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/207064/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/207065/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/207066/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/207068/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/207069/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/207070/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/207071/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/207072/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/207073/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/207074/?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": []
}