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/45849/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 45849,
    "uuid": "04d7581f7c024e669bea5624993f8a95",
    "title": "Whole Atmosphere Community Climate Model (WACCM) and WACCM-RR simulations for 2010",
    "abstract": "The dataset was produced from two numerical simulations for the year 2010 using the Whole Atmosphere Community Climate Model with Regional Refinement (WACCM-RR). The standard configuration (Non-RR) uses a global horizontal resolution of approximately 1° (~111 km), while the refined configuration (RR) employs a nested grid of ~1/8° (~14 km) over the contiguous United States (CONUS) with 1° resolution elsewhere. The higher-resolution RR simulation directly resolves more gravity waves. Model outputs were post-processed to analyse differences in atmospheric composition and dynamics, including temperature, atomic oxygen (O), nitric oxide (NO), carbon monoxide (CO), carbon dioxide (CO2), and ozone (O3), as well as vertical fluxes. The workflow includes model configuration, execution, data extraction, and analysis.\r\n\r\nThis dataset has been generated using the cam6_2_011 development tag of the NSF National Center for Atmospheric Research (NCAR) Community Earth System Model (CESM).",
    "keywords": "WACCM,CESM,NCAR",
    "publicationState": "published",
    "dataPublishedTime": "2026-05-14T07:51:21",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://catalogue.ceda.ac.uk/api/v2/observations/45854/?format=api",
        "dataPath": "/badc/deposited2026/WACCM-RR_model_Kupilas/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 9254759537878,
        "numberOfFiles": 10396,
        "fileFormat": "NetCDF"
    },
    "timePeriod": "https://catalogue.ceda.ac.uk/api/v2/times/13139/?format=api",
    "geographicExtent": "https://catalogue.ceda.ac.uk/api/v2/bboxes/5140/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/3837/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/3845/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/3857/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/4385/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/18405/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/18408/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/52192/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/52193/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/54922/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/54923/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/54926/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/54927/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/54928/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/54929/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/54931/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/54932/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/54963/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/54966/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/55047/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/55067/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/63572/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/92532/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93268/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93269/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93270/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93271/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93272/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93273/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93274/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93275/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93276/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93277/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93278/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93279/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93280/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93281/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93282/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93283/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93284/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93285/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93286/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93287/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93288/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93289/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93290/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93291/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93292/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93293/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93294/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93295/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93296/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93297/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93298/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93299/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93300/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93301/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93302/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93303/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93304/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93305/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93306/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93307/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93308/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93309/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93310/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93311/?format=api"
    ],
    "dataLineage": "Data were generated using a development version of CESM: cam6_2_011 followed by post-processing and analysis to derive the final variables. The workflow includes simulation setup, model execution, data extraction, and statistical analysis. Full details of the simulation configuration and processing pipeline are described in the associated publication: https://essopenarchive.org/doi/pdf/10.22541/essoar.174646151.14018850/v1?download=true.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://catalogue.ceda.ac.uk/api/v2/projects/45853/?format=api"
    ],
    "observationcollection_set": [],
    "responsiblepartyinfo_set": [
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219173/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219199/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219175/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219176/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219177/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219178/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219179/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219174/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219200/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219180/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219181/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219182/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219183/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219184/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219185/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219186/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219187/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219188/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219189/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219190/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219191/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/219192/?format=api"
    ],
    "procedureAcquisition": "https://catalogue.ceda.ac.uk/api/v2/acquisitions/45850/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://catalogue.ceda.ac.uk/api/v2/observations/2526/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
            "licenceClassifications": "any, attribution required"
        }
    ],
    "discoveryKeywords": []
}