Observation Instance – Django REST framework

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/8156/?format=api

HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 8156,
    "uuid": "84b0200944d5eca9b57aa6370429f23c",
    "title": "AATSR: Level 3 University of Leicester Land Surface Temperature (LST) product (UOL_LST_3P), v2.1",
    "abstract": "Land Surface Temperature (LST) Level 3 gridded data products (UOL_LST_3P) from the Advanced Along Track Scanning Radiometer (AATSR) produced by the University of Leicester.  \r\n\r\nThe data consists of global gridded Level 3 product at a pre-defined set of spatial and temporal resolutions. The product provide AATSR-derived land surface temperature data and its associated uncertainty, as wall as additional auxiliary information.\r\n\r\nThe gridded level 3 product has been derived from the 1km Level-2 AATSR Version 3 LST product (UOL_LST_2P).  The Level 3 gridded product was produced under funding from the National Centre for Earth Observation (NCEO).",
    "keywords": "AATSR, LST, Land, Surface, temperature",
    "publicationState": "published",
    "dataPublishedTime": "2014-07-09T10:29:23",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/8157/?format=api",
        "dataPath": "/neodc/aatsr_multimission/aatsr-v2.1/data/UOL_LST_3P",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 740911293299,
        "numberOfFiles": 125586,
        "fileFormat": "Data are netCDF formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/2335/?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/54669/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54670/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54671/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54672/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54673/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54674/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54675/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54676/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54677/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54678/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54679/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54680/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54681/?format=api"
    ],
    "dataLineage": "The Land Surface Temperature product was derived by the University of Leicester, from the AATSR radiance data acquired by the European Space Agency's (ESA) Envisat satellite. The Level 3 data product was derived from the Level 2 product which forms part of the ESA (A)ATSR multimission data product. The Level 3 data product is archived at the NERC Earth Observation Data Centre (NEODC).",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5267/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/19899/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/8059/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/19727/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/43180/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33038/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33040/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33041/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33042/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/42784/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/42785/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33043/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33039/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/8160/?format=api",
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2522/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "registered",
            "accessRoles": null,
            "label": "registered: None group",
            "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}