GET

Observation Instance

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/19828/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 19828,
    "uuid": "a6efcb0868664248b9cb212aba44313d",
    "title": "ESA Aerosol Climate Change Initiative (Aerosol CCI): Level 2 aerosol products from MERIS (ALAMO algorithm), Version 2.2",
    "abstract": "The ESA Climate Change Initiative Aerosol project has produced a number of global aerosol Essential Climate Variable (ECV) products from a set of European satellite instruments with different characteristics. \r\n\r\nThis dataset comprises the Level 2 aerosol products from MERIS for 2008, using the ALAMO algorithm, version 2.2.   The data have been provided by Hygeos.\r\n\r\nFor further details about these data products please see the linked documentation.",
    "keywords": "Aerosol, ESA, CCI, MERIS",
    "publicationState": "published",
    "dataPublishedTime": "2016-07-28T14:39:08",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/19830/?format=api",
        "dataPath": "/neodc/esacci/aerosol/data/MERIS_ALAMO/L2/v2.2",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 10243677193,
        "numberOfFiles": 5261,
        "fileFormat": "Data are in NetCDF format"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/5189/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/529/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/18518/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/18519/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/18520/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/18521/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/18522/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/18523/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/18524/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/18525/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/18526/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/18527/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/18528/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/18529/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/18530/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/18531/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/18533/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/18534/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/18535/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/18536/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/18537/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/18538/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/18539/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/18540/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/18541/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/18542/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/18543/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25983/?format=api"
    ],
    "dataLineage": "Data were produced by Hygeos as part of the ESA CCI Aerosol project and supplied 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/13341/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/13340/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/75163/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/75160/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/75162/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/75159/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/104933/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/105150/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/105328/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/75190/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/75161/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/75158/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/8344/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2555/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/esacci_aerosol_terms_and_conditions.pdf",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        },
        {
            "ob_id": 1140,
            "name": "ESACCI"
        }
    ]
}