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/30578/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 30578,
    "uuid": "5308cdab2ffd4d8f88031c37f6c11999",
    "title": "ESA Aerosol Climate Change Initiative (Aerosol CCI): Level 3 daily mean aerosol products (IASI_MAPIR algorithm), Version 3.51",
    "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.",
    "keywords": "Aerosol, ESA, CCI",
    "publicationState": "working",
    "dataPublishedTime": null,
    "doiPublishedTime": null,
    "updateFrequency": "",
    "status": "ongoing",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/30579/?format=api",
        "dataPath": "/neodc/esacci/aerosol/data/IASI_MAPIR/v3.51/L3_DAILY",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 2400947878,
        "numberOfFiles": 7709,
        "fileFormat": "Data are netCDF formatted."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/8326/?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/50542/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50543/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/65821/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/65822/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/65823/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/65824/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/65825/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/65826/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/65827/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/65828/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/65829/?format=api"
    ],
    "dataLineage": "Data were processed by the ESA CCI Aerosol project team 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": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/132297/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/132298/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/132299/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/132300/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/132301/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/132303/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/132304/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/132302/?format=api"
    ],
    "procedureAcquisition": null,
    "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": []
}