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/4848/?format=api

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

{
    "ob_id": 4848,
    "uuid": "06811877907e0da7236d294a9fea4511",
    "title": "Convective Storm Initiation Project (CSIP): University of Salford Doppler Lidar Data",
    "abstract": "The University of Salford Doppler lidar data describes parameters measured by the UFAM (UK Universities Facilities for Atmospheric Measurements) Doppler lidar system, which is operated and maintained by the University of Salford. The data were collected at Faccombe wind turbine field site, Hampshire and collected data in July 2004. The dataset contains measurements of Doppler radial velocities.",
    "keywords": "CSIP, Lidar",
    "publicationState": "published",
    "dataPublishedTime": "2006-08-17T13:59:38",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/4849/?format=api",
        "dataPath": "/badc/csip/data/salford-lidar-dop-1",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 189731945,
        "numberOfFiles": 919,
        "fileFormat": "Data are netCDF formatted\r\n\r\n\r\n"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/1399/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/811/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3165/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3166/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3167/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3168/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3169/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3170/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3171/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3172/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3173/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3174/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3175/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3176/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3177/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3178/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3180/?format=api"
    ],
    "dataLineage": "Data were collected by the 3 GHz (CAMRa) and 1275 clear-air (ACROBAT) radars at Chilbolton and used a number of the new UK Universities' Facility for Atmospheric Measurement (UFAM) mobile instruments, in June, July and August of 2005. Data provided by Convective Storm Initiation Project (CSIP) participants to the BADC for archiving.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/3238/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/4614/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/4611/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21990/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21989/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21991/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21992/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21993/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21995/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41044/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41047/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54572/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/4850/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2543/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "registered",
            "accessRoles": null,
            "label": "registered: None group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/missing_licence.pdf",
            "licenceClassifications": "unstated"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}