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/19179/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 19179,
    "uuid": "daf7935392ac48149e6315b7f763b662",
    "title": "RAPID: Fresh Water Hosing model output from the SIB experiment run by 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 fresh water hosing model output from the SIB experiment run by the HadCM3 model. The freshwater was added to the Arctic Ocean north of the Siberian coast.",
    "keywords": "RAPID, Climate change, Atlantic Ocean's Thermohaline Circulation",
    "publicationState": "published",
    "dataPublishedTime": "2008-12-10T14:01:29",
    "doiPublishedTime": null,
    "updateFrequency": "asNeeded",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/19180/?format=api",
        "dataPath": "/badc/rapid/data/Osborn_Rapid1_JointAO/FW_hosing_SIB",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 16787192153,
        "numberOfFiles": 4648,
        "fileFormat": "Data are netCDF formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/5012/?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/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/52405/?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/53884/?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/53923/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53924/?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/74532/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/79933/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/79934/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/79935/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/79936/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/79937/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/79938/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/79939/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/79940/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/79941/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/79942/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/79943/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/79944/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/79945/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/79946/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/79947/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/79948/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/79949/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/79950/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/79971/?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/72183/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72180/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72181/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72182/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72184/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72185/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72179/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72186/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72471/?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"
        }
    ]
}