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/41617/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 41617,
    "uuid": "4aac4f8ba15f43e59eb81756b464c9fb",
    "title": "A global climatology of sting-jet cyclones: TRACK files and Sting-Jet Precursor Cut-Outs",
    "abstract": "This dataset contains:\r\n(1) extra-tropical cyclone tracks generated by the \"TRACK\" storm tracking algorithm (Hodges 1994, 1995, 1999) applied the European Centre for Medium-Range Weather Forecasts ERA5 reanalysis product,\r\n(2) cyclone 'cutouts' holding storm-centred gridded data used by the sting-jet precursor (SJP) algorithm (Martinez-Alvarado et al., 2013), and\r\n(3) output diagnostics from the SJP algorithm.\r\n\r\nThe directories contain data for seasons October-March (Northern Hemisphere) and April-September (Southern Hemisphere) during 1979-2022. TRACK uses 850 hPa relative vorticity filtered to T42 spectral resolution to find storm candidates and only tracks lasting >=1day and tracking >=500km are considered. The 10% strongest tracks also exhibiting a warm seclusion are archived in the \"storm_data\" directory for each season, except for the single season October-March 2011/2012 for which all North Atlantic tracks are also included in \"storm_data_alltracks\" directory.\r\n\r\nFull descriptions of each data type are given in:\r\n(1) readme-tracks.txt\r\n(2) readme-cutouts.txt\r\n(3) readme-sjp-outputs.txt\r\n\r\nFor full details of the storm selection and SJP analysis, see Gray et al: A global climatology of sting-jet extratropical cyclones (doi.org/10.5194/egusphere-2024-1413).\r\n\r\nSee online resources on this record for referenced items.",
    "keywords": "Sting Jet, ERA5, Extra-tropical cyclone",
    "publicationState": "citable",
    "dataPublishedTime": "2024-10-22T11:23:21",
    "doiPublishedTime": "2024-10-22T11:34:13",
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/43201/?format=api",
        "dataPath": "/badc/deposited2024/sjclim/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 660617190430,
        "numberOfFiles": 11814,
        "fileFormat": "Data are NetCDF formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/11822/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/4392/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50340/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50559/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53939/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54879/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55257/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55258/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/56766/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/62353/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70293/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/73987/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75139/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75140/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75141/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75142/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75143/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75144/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75145/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75146/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75147/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75148/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75149/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75150/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75151/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75152/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75153/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75154/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75155/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75156/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75157/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75158/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75159/?format=api"
    ],
    "dataLineage": "Data were produced by the project team and supplied for archiving at the Centre for Environmental Data Analysis (CEDA).",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/13203/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/41618/?format=api"
    ],
    "observationcollection_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/205473/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202862/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202858/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202859/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202860/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202861/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202857/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202856/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/205474/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202863/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202864/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202865/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "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": []
}