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/44666/?format=api

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

{
    "ob_id": 44666,
    "uuid": "12298b52a84c482cbd274b44c866cbd1",
    "title": "WesCon: near-surface meteorology from Met Office automatic weather stations at 11 locations for the WesCon/WOEST measurement campaign.  v1.0 (20230414-20231004)",
    "abstract": "This dataset contains a continuous record of temporary in-house designed Met Office automatic weather stations (AWS) deployed at 11 locations in southern England during the summer of 2023 as part of the Wessex Summertime Convection Experiment (WesCon)/WesCon - Observing the Evolving Structures of Turbulence (WOEST) field campaign. \r\n\r\nThe dataset contains recorded surface meteorology and (at six of the locations) subsoil sensors at 1 minute averaging period based around a 1.5 m mast.\r\nInstruments at 1.5 m height include: (Chilbolton, Clench Common, Spire View, Yatesbury Field, Lydeway Field, Breach Hill, Keevil,  Wadswick Farm, The Park Brown Shutters, Henstridge)\r\n•\tPRT screened temperature sensor.\r\n•\tRotronics Hygroclip2 for measuring screened temperature and relative humidity.\r\n•\tBosch Sensortec BMP280 barometric pressure sensor.\r\n•\tRainfall is measured with a Hobo RG3 tipping-bucket gauge with a 0.2 mm accuracy.\r\n•\tHorizontal wind speed and direction from a Gill WindSonic 2-D ultrasonic sensor.\r\nSubsoil instrumentation (at six sites: Lydeway, Chilbolton, Keevil, Henstridge, The Park, Clench Common) includes:\r\n•\tDelta-T PR2 probe measured volumetric soil moisture at various depths (10, 20, 30, 40 cm).\r\n•\tDelta-T ST2 thermistor probes measured soil temperature at 1 cm depth.\r\n•\tHukseflux HFP01SC flux plate measured ground heat flux (2 cm depth).\r\n\r\n\r\nTo ensure optimal traceability and transparency of data, comprehensive metadata is included.",
    "keywords": "WesCon, Met Office, wind speed, wind direction,  temperature, relative humidity, surface, precipitation, rainfall, amount, soil, moisture, flux tower, surface, subsurface",
    "publicationState": "citable",
    "dataPublishedTime": "2025-08-07T08:21:53",
    "doiPublishedTime": "2025-08-07T09:38:09",
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/44669/?format=api",
        "dataPath": "/badc/woest/data/metoffice-aws/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 512219691,
        "numberOfFiles": 1583,
        "fileFormat": "NetCDF"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/12564/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/4819/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86159/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86160/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86161/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86162/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86163/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86164/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86165/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86166/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86167/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86168/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86169/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86170/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86171/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86172/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86173/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86174/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86175/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86176/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86177/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86178/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86179/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86180/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86181/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86182/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86183/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86184/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86185/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86186/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86187/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86188/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86189/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86190/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86191/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86192/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86193/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86194/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86195/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86196/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86197/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86198/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86199/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86200/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86201/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86202/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86203/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86204/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86205/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86206/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86207/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86208/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86209/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86210/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86211/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86212/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86213/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86214/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86215/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86216/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86217/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86218/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86219/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86220/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86221/?format=api"
    ],
    "dataLineage": "Data were processed and prepared by the Met Office instrument team before delivery to the NERC EDS Centre for Environmental Data Analysis (CEDA) for long term archival.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/13469/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/37501/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/43875/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213898/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213892/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213896/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213897/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213891/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213893/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213894/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213895/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213899/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213900/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213901/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/44668/?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"
        }
    ],
    "discoveryKeywords": []
}