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/33115/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 33115,
    "uuid": "aa4106a7a35246dfb84fb925a7d65650",
    "title": "1/12 degree Nucleus for European Modelling of the Ocean (NEMO) model of the Southern Ocean:  JRA55-do with absolute wind stress experiment (1988 - 2007)",
    "abstract": "The dataset is a 20 year experiment using a NEMO-based 1/12 degree grid spacing model of the Southern Ocean as part of the ORCHESTRA (Ocean Regulation of Climate by Heat and Carbon Sequestration and Transports) LTS-M project. It uses the NEMO \"extended\" grid, although ice cavities are closed. The model was run on Archer, the national HPC platform. The dataset covers the full length of the model run and includes regular (5 day mean) output of the model state, as well as more frequent (1 day mean) output of surface variables and fluxes and 1 month mean of more extensive transport diagnostics. The experiment neglects the ocean surface current in the bulk formula calculations for surface fluxes, so-called absolute wind stress. It starts from the end of 1987 of JRA55IAF (Munday et al., 2021).\r\n\r\nForced by JRA55-do, an interannually-varying forcing set (Tsujino et al., 2018). With some additional forcing as supplied by the UK Met Office (freshwater runoff, tidal friction, geothermal heating) and additional freshwater runoff to suppress polynya formation.",
    "keywords": "oceans, climatologyMeteorologyAtmosphere",
    "publicationState": "citable",
    "dataPublishedTime": "2021-09-28T09:30:52",
    "doiPublishedTime": "2021-10-21T14:03:04",
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/33118/?format=api",
        "dataPath": "/bodc/BAS210038/JRA55ABS-ORCH0083-LIM3",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 21581304390363,
        "numberOfFiles": 36030,
        "fileFormat": "Data are CF-compliant NetCDF formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/6782/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/2807/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/10232/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/10233/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/11626/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/11654/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/11655/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22879/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36269/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36270/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36271/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36272/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36273/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36274/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36275/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36276/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36277/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36278/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36279/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36280/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36281/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36282/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36283/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36284/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36285/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36286/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36287/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36288/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36289/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36290/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36291/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36292/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36293/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36294/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36295/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36296/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36297/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36298/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36299/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36300/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36301/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36302/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36303/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36304/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36305/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36306/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36307/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36308/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36309/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36310/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36311/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36312/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36313/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36314/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36315/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36316/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36317/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36318/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36319/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36320/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36321/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36322/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36323/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36324/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36325/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36326/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36327/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36328/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36329/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36330/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36331/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36332/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36333/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36334/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36335/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36336/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36337/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36338/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36339/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36340/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36341/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36342/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36343/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36344/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36345/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36346/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36347/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36348/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36349/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/36350/?format=api"
    ],
    "dataLineage": "Data were generated using a Nucleus for European Modelling of the Ocean (NEMO) based model run on Archer, the national HPC platform. Data were submitted to the British Oceanographic Data Centre (BODC, NOC) and then archived at the Centre for Environmental Data Analysis (CEDA).",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/10955/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/32626/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/33122/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/147882/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/147883/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/147884/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/147885/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/147886/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/147887/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/147888/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/147889/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/147893/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": "https://api.catalogue.ceda.ac.uk/api/v2/computations/33039/?format=api",
    "permissions": [
        {
            "ob_id": "https://api.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"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}