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/11711/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 11711,
    "uuid": "91ab68936773eedd18162d7c9fe3e653",
    "title": "UKCIP02: 50km gridded data for UK climate projection scenarios (2002)",
    "abstract": "The 50km gridded resolution data for four climate projection scenarios produced in support of the UK Climate Impacts Programme 2002 (UKCIP02).\r\n\r\nThere are data for monthly and seasonal average anomalies with respect to simulated 1961~90 average for four alternative future climates for the UK. The four emissions scenarios are Low (LO), Medium-Low (ML), Medium-High (MH) and High (HI).\r\n\r\nThe monthly time-slice data are available for the following variables: \r\nMaximum temperature (TMAX), Minimum temperature (TMIN), Daily mean temperature (TEMP), Total precipitation rate (PREC), Snowfall rate (SNOW), Wind speed (WIND), Relative humidity (RHUM), Total cloud in longwave radiation (TCLW), Net surface longwave flux (NSLW), Net surface shortwave flux (NSSW), Total downward surface shortwave flux (DSWF), Soil moisture content (SMOI), Mean sea level pressure (MSLP), Surface latent heat flux (SLHF), Specific humidity (SPHU), Inter-annual variability: temperature (IAVT) and Inter-annual variability: precipitation (IAVP). \r\n\r\nThe data are available over the following time periods using the following convention in the filename:\r\n6190 = 1961 to 1990, i.e. observed climate, \r\n2020s = predictions for 2011 to 2040,\r\n2050s = predictions for 2041 to 2070,\r\n2080s = predictions for 2071 to 2100.",
    "keywords": "UKCIP, UKCIP02, Climate, Projections, UKCP",
    "publicationState": "published",
    "dataPublishedTime": "2017-02-20T12:39:51",
    "doiPublishedTime": null,
    "updateFrequency": "",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/11712/?format=api",
        "dataPath": "/badc/ukcip02/data/50km_resolution",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 57691086,
        "numberOfFiles": 1399,
        "fileFormat": "Data are provided in the following formats: text, shape files, csv and pdf."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/3269/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/509/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/10256/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/10257/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/10258/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/10259/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/10260/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/10261/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/10262/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/10263/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/10264/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/10265/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/10266/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/10267/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/10268/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/10269/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/10270/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/10271/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/10272/?format=api"
    ],
    "dataLineage": "Data were produced by the Met Office Hadley Centre, analysed by the Tyndall Centre and passed to the NCAS British Atmospheric Data Centre (NCAS BADC) for archival.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/11714/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/11710/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/45410/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/45408/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/45403/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/45402/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/45411/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/45405/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78374/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/45404/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/45406/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/45407/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/45409/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78375/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/148606/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": "https://api.catalogue.ceda.ac.uk/api/v2/computations/11713/?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"
        }
    ]
}