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/4845/?format=api

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

{
    "ob_id": 4845,
    "uuid": "307f3be807331cc534223b11ef0ff9ca",
    "title": "Convective Storm Initiation Project (CSIP): Met Office Radiometrics MP3000 profling radiometer at Linkenholt, UK",
    "abstract": "The data were collected by the Met Office’s Radiometrics TP/WVP-3000 which was deployed to Linkenholt on 13 June until 21 September 2005. The dataset contains plots of temperature, relative humidity, pressure, and rainfall amount.\r\n\r\nIt was initially configured to view in the zenith direction with very high time resolution (~12 s). All channels also viewed the internal black body target for relative calibration, initially every 5 minutes. However, initially this did not take place between 11 – 13 UTC due to a configuration error, which was corrected on 8 July 2005. Prior to this date, the calibration of data around noon is prone to drift.\r\n\r\nThe radiometer ran continuously in this mode until 20 July 2005, when it was re-configured to alternative between zenith views and internal black body calibration views in a 30 s cycle because of concerns over the drift in calibration over the previous 5 minute calibration period.\r\n\r\nThere was a power outage on 2 August 2005 from 0730 – 0946 UTC when no radiometer data was available.\r\n\r\n",
    "keywords": "CSIP, Met Office, temperature, relative humidity, pressure",
    "publicationState": "published",
    "dataPublishedTime": "2006-08-17T13:57:45",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/4846/?format=api",
        "dataPath": "/badc/csip/data/metoffice-radiom-mp3000",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 132439576,
        "numberOfFiles": 66,
        "fileFormat": "Data are netCDF formatted and images are png formatted\r\n"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/1398/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/97/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1340/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1341/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1342/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1343/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1344/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1345/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1346/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1347/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1348/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1349/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1350/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1351/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1352/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1353/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1354/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1355/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1356/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1357/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1358/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1359/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1360/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1361/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1362/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1363/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1364/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1365/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1366/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1367/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1368/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1369/?format=api"
    ],
    "dataLineage": "Data from the UK Met Office were supplied to the Convective Storm Initiation Project (CSIP) participants and then to the BADC for archiving.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/3237/?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/21982/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21981/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21983/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21984/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21985/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/21987/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41701/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41704/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54582/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/4847/?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"
        }
    ]
}