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/29664/?format=api

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

{
    "ob_id": 29664,
    "uuid": "1147da987fa44e91a75d01edfa261bbe",
    "title": "WCRP CMIP6: the CNRM-CERFACS team CNRM-CM6-1 model output for the \"ssp245\" experiment",
    "abstract": "The World Climate Research Program (WCRP) Coupled Model Intercomparison Project, Phase 6 (CMIP6) data from the the CNRM-CERFACS team CNRM-CM6-1 model output for the \"update of RCP4.5 based on SSP2\" (ssp245) experiment. These are available at the following frequencies: 3hr, AERmon, Amon, E3hr, Eday, Emon, LImon, Lmon, Oday, Ofx, Omon, SIday, SImon and day. The runs included the ensemble members: r1i1p1f2, r2i1p1f2, r3i1p1f2, r4i1p1f2, r5i1p1f2 and r6i1p1f2.\n\nCMIP6 was a global climate model intercomparison project, coordinated by PCMDI (Program For Climate Model Diagnosis and Intercomparison) on behalf of the WCRP and provided input for the Intergovernmental Panel on Climate Change (IPCC) 6th Assessment Report (AR6).\n\nThe the CNRM-CERFACS team team consisted of the following agencies: Centre National de Recherches Météorologiques (CNRM) and Centre Européen de Recherche et Formation Avancée en Calcul Scientifique (CERFACS).\n\nThe official CMIP6 Citation, and its associated DOI, is provided as an online resource linked to this record.",
    "keywords": "CMIP6, WCRP, climate change, CNRM-CERFACS, CNRM-CM6-1, ssp245, 3hr, AERmon, Amon, E3hr, Eday, Emon, LImon, Lmon, Oday, Ofx, Omon, SIday, SImon, day",
    "publicationState": "published",
    "dataPublishedTime": "2019-11-09T00:35:20.323993",
    "doiPublishedTime": null,
    "updateFrequency": "asNeeded",
    "status": "ongoing",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/29665/?format=api",
        "dataPath": "/badc/cmip6/data/CMIP6/ScenarioMIP/CNRM-CERFACS/CNRM-CM6-1/ssp245",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 1807896822480,
        "numberOfFiles": 1000,
        "fileFormat": "Data are netCDF formatted."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/8053/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/529/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/2639/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/6024/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/6059/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/6086/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/6087/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/6089/?format=api",
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    ],
    "dataLineage": "Data were produced and verified by the CNRM-CERFACS team scientists before publication via the Earth Systems Grid Federation (ESGF) and a copy obtained by the Centre for Environmental Data Analysis (CEDA).",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/28287/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/28492/?format=api"
    ],
    "responsiblepartyinfo_set": [
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        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/127572/?format=api",
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    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": "https://api.catalogue.ceda.ac.uk/api/v2/computations/29666/?format=api",
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2520/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/CMIP6_Terms_of_Use.pdf",
            "licenceClassifications": ""
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}