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/45814/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 45814,
    "uuid": "28bea4e8c23547a7a5b8df656c16e8d4",
    "title": "Operation Weather Rescue: scanned copies of meteorological observation registers and tabulated records from the Devon and Exeter Institute manuscript archives, 1817-1975",
    "abstract": "This dataset contains scanned copies of the meteorological record from the Devon and Exeter Institute manuscript archives, 1817-1975, taken by a number of observers over the years at the site of the Devon and Exeter Institution (DEI), Exeter, Devon.\r\n\r\nThe location in the manuscripts is noted as being: \r\n50° 45' (50.75°N), 3° 41'W (3.683333°W).\r\n\r\nHowever, that places the location some way to the west of Exeter, whist the recordings were believed to have been made at the DEI building in Exeter:\r\n\r\nOS Grid reference: SX 92157 92615\r\nEastings: 292157\r\nNorthings: 092615\r\nLatitude: 50.723121 N \r\nLongitude: -3.5291675 W\r\n\r\nThe images are stored in a series of folders with the naming convention as follows:\r\n\r\nDEI_MR_[start year]_[end year]\r\n\r\nWhere:\r\n\r\nDEI = Devon and Exeter Institute\r\nMR = Meteorological Record\r\n[start year] and [end year] elements are taken as the years covered by the volume. In some cases there is a mid-year break between which volumes records are stored. \r\n\r\nWithin the folders the files are given the name IMG_####.jpg. The first file shows an image of the spine of the volume from which the subsequent images of the pages are given.\r\n\r\nThe imaging of the volumes was funded by the National Centre for Atmospheric Sciences and effort supported through the GLoSAT project.",
    "keywords": "Met Office, Reports, Weather, Meteorology",
    "publicationState": "citable",
    "dataPublishedTime": "2026-05-20T12:32:31",
    "doiPublishedTime": "2026-05-20T15:07:50.260114",
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://catalogue.ceda.ac.uk/api/v2/observations/45815/?format=api",
        "dataPath": "/badc/operation-weather-rescue/data/DEVON-EXETER-INSTITUTE",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 6829107628,
        "numberOfFiles": 2043,
        "fileFormat": "JPEG"
    },
    "timePeriod": "https://catalogue.ceda.ac.uk/api/v2/times/13126/?format=api",
    "geographicExtent": "https://catalogue.ceda.ac.uk/api/v2/bboxes/5132/?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/13868/?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/219021/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219019/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219020/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219022/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219023/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219024/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219025/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219026/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219027/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219591/?format=api"
    ],
    "procedureAcquisition": "https://catalogue.ceda.ac.uk/api/v2/acquisitions/45817/?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": []
}