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/4447/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 4447,
    "uuid": "657b2c9f2c451d15a6afd5e3dc936f77",
    "title": "RAPID: Unified Model temperature and humidity data from xbzlf run",
    "abstract": "Data from \"The impact of climate change on the North Atlantic and European storm-track and blocking\" project was a Natural Environment Research Council (NERC) RAPID Climate Change Research Programme project (Round 2 - NE/C509115/1 - Duration 14 Mar 2005 - 13 Mar 2008) led by Prof Sir Brian Hoskins of Imperial College London, Grantham Institute for Climate Change, with co-investigators also at the University of Reading.\r\n\r\nThis dataset collection contains Unified Model climate temperature and humidity outputs from model run xbzlf.\r\n\r\nRapid Climate Change (RAPID) was a £20 million, six-year (2001-2007) programme for the Natural Environment Research Council. The programme aimed to improve the ability to quantify the probability and magnitude of future rapid change in climate, with a main (but not exclusive) focus on the role of the Atlantic Ocean's Thermohaline Circulation.",
    "keywords": "RAPID, Climate change, Atlantic Ocean's Thermohaline Circulation",
    "publicationState": "published",
    "dataPublishedTime": "2014-09-21T15:31:52",
    "doiPublishedTime": null,
    "updateFrequency": "asNeeded",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/4448/?format=api",
        "dataPath": "/badc/rapid/data/Hoskins_Rapid1_Round2/xbzlf/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 161504812323,
        "numberOfFiles": 1659,
        "fileFormat": "Data are netCDF formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/5003/?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/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/1324/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1325/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3064/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3105/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3143/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3148/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3692/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3695/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3696/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3697/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3698/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3700/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3701/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/6877/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/6878/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/6879/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/6880/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/7000/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/7001/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/7002/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51586/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51594/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53779/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53780/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53781/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53782/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53783/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53784/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53785/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53786/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53787/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53788/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53789/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53790/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53791/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53792/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53793/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53794/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53795/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53796/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53797/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53800/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53801/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53802/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53803/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53804/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53805/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53806/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53807/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53808/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53809/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53810/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53811/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53812/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53813/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53814/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53815/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53816/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53817/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53818/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53819/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53820/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53821/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53822/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53823/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53824/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53825/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53826/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53827/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53828/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53829/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53830/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53831/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53832/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53833/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53834/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53835/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53836/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53837/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53838/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53839/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53840/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53841/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53842/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53843/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53844/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53845/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53846/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53847/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53848/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53849/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53850/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53851/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53852/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53853/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53854/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53855/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53856/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53857/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53858/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53859/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53860/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53861/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53862/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53863/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53864/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53865/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53866/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53867/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53868/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53869/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53870/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53871/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53872/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53873/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53874/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55779/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60799/?format=api"
    ],
    "dataLineage": "Data from University of Reading.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2987/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/19094/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/4446/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/20904/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/20902/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/20905/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/20906/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/20907/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/20908/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72316/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/20903/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72446/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72317/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/72318/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": "https://api.catalogue.ceda.ac.uk/api/v2/computations/7778/?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"
        }
    ]
}