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/27460/?format=api

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

{
    "ob_id": 27460,
    "uuid": "2d9162f949e042adbdd6ec82c910ee5b",
    "title": "Theoretical uncertainties for three global satellite-derived burned area estimates",
    "abstract": "Estimated annual burned area and uncertainties for three global satellite-derived burned area products. Each estimate is provided at 1° spatial resolution for the years 2001-2013.  Theoretical annual uncertainties in burned area (standard errors) products are generated according to a multiplicative triple collocation error model and annualised according to a sampling of the 16-day burned area estimates from each product. The approach provides unique uncertainties at 1° for the NASA Moderate Resolution Imaging Spectroradiometer (MODIS) Collection 6 burned area product (MCD64); the MODIS Collection 5.1 MCD45 product and the FireCCI50 product. Please note that due to limitations in the available sampling for the error model, around 40% of cells do not have uncertainty estimates.",
    "keywords": "biomass burning, forest fires",
    "publicationState": "citable",
    "dataPublishedTime": "2019-07-23T10:47:07",
    "doiPublishedTime": "2019-07-26T14:04:07.382780",
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/27461/?format=api",
        "dataPath": "/badc/deposited2019/ba_uncertainties/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 20243861,
        "numberOfFiles": 2,
        "fileFormat": "Data are NetCDF formatted."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/7370/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/2398/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/6323/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/6324/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21859/?format=api"
    ],
    "dataLineage": "Data were produced by the project team before preparation and delivery for archiving at the Centre for Environmental Data Analysis (CEDA).",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/10538/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/27462/?format=api"
    ],
    "observationcollection_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114805/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114800/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114801/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114802/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114803/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114804/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114806/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114799/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114807/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114808/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114809/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/27463/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "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"
        }
    ]
}