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/4496/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 4496,
    "uuid": "00a89111f9e1aeb0cc11892559980957",
    "title": "HYREX project: Met Office C-band radar data from Cobbacombe Cross, UK",
    "abstract": "HYREX (Hydrological Radar Experiment) was a NERC (Natural Environment Research Council) special topic running from May 1993 to April 1997. Field experiments with an emphasis on radar, plus related interpretation and modelling, were carried out to investigate the short term forecasting and hydrological implications of precipitation. A special purpose-built dense rainguage network was established in Somerset as part of the project. Rainguage, radar and related meteorological data plus forecast data from the Met Office Unified Model are available through BADC.",
    "keywords": "HYREX, Met Office Radar",
    "publicationState": "published",
    "dataPublishedTime": "2007-01-25T00:08:37",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/4497/?format=api",
        "dataPath": "/badc/hyrex/data/Common/cob",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 3019859994,
        "numberOfFiles": 5612,
        "fileFormat": "Data are Binary formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/1280/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/84/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/13197/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/13200/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21769/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21947/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21954/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21966/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22356/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22359/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22591/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22595/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22596/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25384/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25388/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25393/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25869/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25876/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25884/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25906/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25911/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25918/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25946/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25947/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25948/?format=api"
    ],
    "dataLineage": "Latest HYREX data acquired in 1998 from CEH (on tape). Data was uploaded as is into the BADC archive as is from tapes.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/3024/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/4493/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/4490/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21037/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21041/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21042/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21038/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21039/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21040/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21036/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21035/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54924/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/5778/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2532/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "restricted",
            "accessRoles": "ukmo_wx",
            "label": "restricted: ukmo_wx group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/ukmo_agreement.pdf",
            "licenceClassifications": "academic"
        },
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2533/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "restricted",
            "accessRoles": "ukmo_wx_gov",
            "label": "restricted: ukmo_wx_gov group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/ukmo_agreement_gov.pdf",
            "licenceClassifications": "policy"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}