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/19185/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 19185,
    "uuid": "9ec74a6731844c3d9f38451b8da0277a",
    "title": "RAPID: Radiative forcing model output for 1690 from the HadCM3 model",
    "abstract": "\"To what extent was the Little Ice Age a result of a change in the thermohaline circulation?\" project. This was a Natural Environment Research Council (NERC) RAPID Climate Change Research Programme project (Joint International Round - NE/C509507/1 - Duration 1 Aug 2005 - 31 Jul 2008) led by Dr Tim Osborn of the University of East Anglia, with co-investigators at the University of East Anglia and Royal Netherlands Meteorology Institute. \r\n\r\nThe dataset contains radiative forcing model output from the HadCM3 model.",
    "keywords": "RAPID, Climate change, Atlantic Ocean's Thermohaline Circulation",
    "publicationState": "published",
    "dataPublishedTime": "2008-12-10T14:03:44",
    "doiPublishedTime": null,
    "updateFrequency": "asNeeded",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/19186/?format=api",
        "dataPath": "/badc/rapid/data/Osborn_Rapid1_JointAO/radforcing_1690",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 8900078620,
        "numberOfFiles": 2101,
        "fileFormat": "Data are netCDF formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/5013/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/1/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1319/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1320/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1321/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1322/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1323/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1325/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3053/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3063/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3064/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3143/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3144/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3145/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52405/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52415/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53875/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53876/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53877/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53878/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53879/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53880/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53881/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53882/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53883/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53885/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53886/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53887/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53888/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53889/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53890/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53891/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53892/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53893/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53894/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53895/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53896/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53897/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53898/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53899/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53900/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53901/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53902/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53903/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53904/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53905/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53906/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53907/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53908/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53909/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53910/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53911/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53912/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53913/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53914/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53915/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53916/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53917/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53918/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53919/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53920/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53921/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53922/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53925/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53926/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55440/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55441/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55442/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55443/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55453/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55462/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55475/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55476/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55498/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55499/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55503/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55788/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55789/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55790/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55791/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55792/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55793/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55794/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55795/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55796/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55797/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55798/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55799/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55800/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55801/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55802/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55803/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55804/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55805/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55806/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55807/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55808/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55809/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55810/?format=api"
    ],
    "dataLineage": "Data from Climatic Research Unit, University of East Anglia",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/13397/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/1285/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72205/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72206/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72212/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72207/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72208/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72211/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72210/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72209/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72213/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72480/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": "https://api.catalogue.ceda.ac.uk/api/v2/computations/7452/?format=api",
    "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": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}