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/13333/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 13333,
    "uuid": "0f29b5f7ca774bd590a2ade5f94e9ddb",
    "title": "ESA Ocean Colour Climate Change Initiative (Ocean Colour CCI): Daily global ocean colour data products gridded on a geographic projection (All Products), Version 1.0",
    "abstract": "The ESA Ocean Colour CCI project has produced global level 3 binned multi-sensor time-series of satellite ocean-colour data with a particular focus for use in climate studies.\r\n\r\nThis dataset contains all their Version 1.0 generated ocean colour products on a geographic projection at 4 km spatial resolution and at a daily time resolution.\r\n\r\nData products being produced include: phytoplankton chlorophyll-a concentration; remote-sensing reflectance at six wavelengths; total absorption and backscattering coefficients; phytoplankton absorption coefficient and absorption coefficients for dissolved and detrital material; and the diffuse attenuation coefficient for downwelling irradiance for light of wavelength 490nm. Information on uncertainties is also provided.\r\n\r\nThis data product is on a geographic grid projection, which is a direct conversion of latitude and longitude coordinates to a rectangular grid, typically a fixed multiplier of 360x180. The netCDF files follow the CF convention for this projection with a resolution of 8640x4320.   (A separate dataset is also available for data on a sinusoidal projection.)\r\n",
    "keywords": "ESA, CCI, Geographic, Daily",
    "publicationState": "published",
    "dataPublishedTime": "2015-12-07T08:09:50",
    "doiPublishedTime": null,
    "updateFrequency": "",
    "status": "superseded",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/13334/?format=api",
        "dataPath": "/neodc/esacci/ocean_colour/data/v1-release/geographic/netcdf/all_products/daily/v1.0",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 6033928676637,
        "numberOfFiles": 5421,
        "fileFormat": "Data is in netCDF"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/3611/?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/1633/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/6019/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/6020/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12059/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12060/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12061/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12062/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12063/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12064/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12065/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12066/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12184/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12186/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12188/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12190/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12192/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12194/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12195/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12196/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12197/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12198/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12199/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12200/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12201/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12202/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12203/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12204/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12205/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12206/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12207/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12208/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12209/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12210/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12211/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12212/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12213/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12214/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12215/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12216/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12217/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12218/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12219/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12220/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12221/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12222/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12223/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12224/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12225/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12226/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12227/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12228/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12229/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12230/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12240/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12241/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12242/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12243/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12244/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12245/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12246/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12247/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12248/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12249/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12250/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12251/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12252/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12253/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12254/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12255/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12256/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12257/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12258/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12259/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12260/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12261/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12262/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12263/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12264/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12265/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12266/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12267/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12268/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12269/?format=api"
    ],
    "dataLineage": "This data has been produced by the ESA Ocean Colour CCI project and provided to CEDA in the context of the ESA CCI Open Data Portal project",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/13365/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/13548/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/13330/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/30128/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/50959/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/50960/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/50961/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/51770/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76535/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/104893/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/105108/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/105287/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52470/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76561/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76587/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76613/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76639/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76665/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76691/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76717/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76743/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76769/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76795/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76821/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76847/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76873/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76899/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76925/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76951/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76977/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77003/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77029/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77055/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77081/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77107/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77133/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77159/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77185/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77211/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77237/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77263/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77289/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77315/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77341/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77367/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77393/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77419/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77445/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77471/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77497/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77523/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77549/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77575/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77601/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77627/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77653/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77679/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77705/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77731/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77757/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77783/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77809/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77835/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77861/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77887/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77913/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77939/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77965/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/77991/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78017/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78043/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78069/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78095/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78121/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78147/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78173/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78199/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78225/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/78251/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2538/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/esacci_oc_terms_and_conditions.pdf",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}