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/19886/?format=api

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

{
    "ob_id": 19886,
    "uuid": "aaf1d54282e94d5483356521f1b76434",
    "title": "ESA Ocean Colour Climate Change Initiative (Ocean_Colour_cci): Global remote sensing reflectance gridded on a geographic projection, Version 2.0",
    "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 the Version 2.0 Remote Sensing Reflectance product on a geographic projection at approximately 4 km spatial resolution and at a number of time resolutions (daily, 5-day, 8-day and monthly composites).  Values for remote sensing reflectance at the sea surface are provided for the standard SeaWiFS wavelengths (412, 443, 490, 510, 555, 670nm) with pixel-by-pixel uncertainty estimates for each wavelength. These are merged products based on SeaWiFS, MERIS and Aqua-MODIS data.    Note, this dataset is also contained within the 'All Products' dataset. \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\r\nPlease note, this dataset has been superseded.  Later version of the data are now available.",
    "keywords": "ESA, CCI, Ocean Colour, Geographic, Reflectance",
    "publicationState": "published",
    "dataPublishedTime": "2016-12-12T17:09:15",
    "doiPublishedTime": null,
    "updateFrequency": "",
    "status": "superseded",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/20077/?format=api",
        "dataPath": "/neodc/esacci/ocean_colour/data/v2-release/geographic/netcdf/rrs/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 5037604116737,
        "numberOfFiles": 8087,
        "fileFormat": "Data are in NetCDF format"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/5258/?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/12066/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50512/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50559/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55904/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55905/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55906/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55907/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55915/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55916/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/62495/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/62496/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80423/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80425/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80430/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80435/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80436/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80437/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80438/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80439/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80440/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80441/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80442/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80443/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80444/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80445/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80446/?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/20073/?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/75560/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/75561/?format=api",
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    ],
    "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"
        }
    ]
}