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/41531/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 41531,
    "uuid": "025b174a38404e8bbc69ef7f144e577d",
    "title": "SASSO data from the Met Office Unified Model",
    "abstract": "This dataset is the Met Office Unified Model data that was used in the SASSO-funded study:\r\nDamany-Pearce, L., Johnson, B., Wells, A. et al. Australian wildfires cause the largest stratospheric warming since Pinatubo and extends the lifetime of the Antarctic ozone hole. Sci Rep 12, 12665 (2022). https://doi.org/10.1038/s41598-022-15794-3\r\n\r\nAs part of the SASSO project researchers collaborated with the Met Office and used the UK Earth System Model (UKESM1) to investigate the impact of the intense wildfires and resulting smoke injections in the stratosphere. The work concluded that: Australian wildfires cause the largest stratospheric warming since Pinatubo and extended the lifetime of the Antarctic ozone hole. Data provided here is from the UKESM1 simulations used in those investigations.\r\n\r\nSpecifically the data consists of zonal mean air temperature (T) and horizonal wind (U) as monthly means. These are monthly means from a single year, since the simulations in the study ran just for a one year. In the dataset there are 3 groups of simulations, each with its own folder:   \"aerosol_and_ozone\",  \"aerosol_only\" and  \"ozone_only\". In each group there are 10 simulations making up a 10 member ensemble. The zonal means are the average across all longitudes (-180 to 180).",
    "keywords": "Aerosol, ozone, stratosphere, model, wildfire, SASSO",
    "publicationState": "published",
    "dataPublishedTime": "2024-09-04T13:47:45",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/41630/?format=api",
        "dataPath": "/badc/deposited2024/SASSO/SASSO_UMDATA_JOHNSON_DAMANY-PE",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 19195756,
        "numberOfFiles": 241,
        "fileFormat": "Files are Net-CDF formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/11579/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/4583/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/6023/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9042/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9043/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/19039/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/19043/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51186/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51187/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/53106/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54871/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/62353/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/62540/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66241/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70293/?format=api"
    ],
    "dataLineage": "Met Office Unified Model version 11.1\r\n\r\nUKESM1 UKESM – The UK Earth System Modelling project [ukesm.ac.uk],\r\n\r\nUKESM1: Description and Evaluation of the U.K. Earth System Model [agupubs.onlinelibrary.wiley.com]",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/38101/?format=api"
    ],
    "observationcollection_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202888/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202372/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202374/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202375/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202376/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202377/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202378/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202373/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202379/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": "https://api.catalogue.ceda.ac.uk/api/v2/computations/43071/?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": []
}