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/40964/?format=api

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

{
    "ob_id": 40964,
    "uuid": "18811b0edff14581b407fba71649e154",
    "title": "HadCM3 Climate Simulation - additional runs for the HadCM3 model",
    "abstract": "Numerical model data from various Hadley Centre coupled model 3 (HadCM3) experiments. These data cover various time periods, but for the climate change experiments are typically over the range 1989-2100 and contains all atmospheric fields derived from the HadCM3 model, at various time resolutions.\r\n\r\nThe Hadley Centre Hadley Centre Coupled Model Version 3 was developed from the earlier HadCM2 model in the period 1997-2000. Various improvements were applied to the 19 level atmosphere model and the 20 level ocean model and as a result the model requires no artificial flux adjustments to prevent excessive climate drift. The atmosphere and ocean exchange information once per day, heat and water fluxes being conserved exactly. The main differences from the previous HadCM2 model are a significantly more sophisticated radiation scheme; the inclusion of the direct impact of convection on momentum; and the inclusion of a new land surface scheme that includes a better representation of evaporation, freezing and melting of soil moisture. It improved on the resolution available from previous Hadley Centre models and included support for interactive couplings between the atmosphere and ocean and the biosphere, atmospheric chemistry, the sulphur cycle and atmospheric aerosols. The HadCM3 model was used by the Hadley Centre to provide input for the IPCC Third Assessment Report.\r\n\r\nThe model runs contained in this folder could not be connected to the specific experiment that produced them, however metadata for each run is archived alongside the data under directory: '/badc/hadcm3/metadata'",
    "keywords": "HadCM3",
    "publicationState": "working",
    "dataPublishedTime": null,
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "ongoing",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/40965/?format=api",
        "dataPath": "/badc/hadcm3/data/HadCM3_rest_of_model_runs/",
        "oldDataPath": [
            "https://api.catalogue.ceda.ac.uk/api/v2/results/3801/?format=api",
            "https://api.catalogue.ceda.ac.uk/api/v2/results/3795/?format=api",
            "https://api.catalogue.ceda.ac.uk/api/v2/results/3799/?format=api"
        ],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 1817721301738,
        "numberOfFiles": 72233,
        "fileFormat": "HadCM3 data is provided in PP (post processing) format."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/11378/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/4018/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/71374/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/71375/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/71376/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/71382/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/71384/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/71385/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/71386/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/71392/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/71395/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/71398/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/71399/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/71410/?format=api",
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    ],
    "dataLineage": "Data from the UK Met Office Hadley Centre. Dataset directory structure was reordered by CEDA staff in November 2023 to place experiment runs within a directory of their associated experiment.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/12731/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/12732/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/12784/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/12785/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/12786/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/12787/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/13847/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/3791/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/199150/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/199156/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/199151/?format=api",
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    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": "https://api.catalogue.ceda.ac.uk/api/v2/computations/40955/?format=api",
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2613/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "restricted",
            "accessRoles": "link",
            "label": "restricted: link group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/ukmo_agreement.pdf",
            "licenceClassifications": "academic"
        }
    ],
    "discoveryKeywords": []
}