GET

Observation Instance

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/40397/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 40397,
    "uuid": "60479dc3e8e3439dbc55a08fd8ebb90b",
    "title": "MOASA flight M251: airborne observations from the Clean Air project over London, UK",
    "abstract": "Observations collected during flight M251 on 03 September 2019 by the Clean Air instrument suite on board the Met Office Atmospheric Survey Aircraft (MOASA) for the MOASA Clean Air project. \r\n\r\nThis dataset contains in meteorological and situ atmospheric composition measurements  (gaseous nitrogen dioxide, ozone, sulphur dioxide and fine mode (PM2.5) aerosol) over London, UK, in a city survey flight pattern as part of the Strategic Priorities Fund (SPF) Clean Air Programme Intense Observational Period. Quicklook plots are also included.\r\n\r\nFull flight track and other MOASA flights can be seen via the CEDA Flight Finder tool linked to on this record.",
    "keywords": "MOASA, aircraft, meteorology, Clean Air, Met Office,  nitrogen dioxide, NO2, ozone, O3, sulphur dioxide, SO2, PM2.5, aerosol",
    "publicationState": "published",
    "dataPublishedTime": "2023-09-19T15:20:30",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/40398/?format=api",
        "dataPath": "/badc/deposited2023/moasa_clean_air_data/M251",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 181809905,
        "numberOfFiles": 21,
        "fileFormat": "NetCDF format"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/11214/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/3899/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63234/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63235/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63236/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63237/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63238/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63239/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63240/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63241/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63242/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63243/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63244/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63245/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63246/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63247/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63248/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63249/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63250/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63251/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63252/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63253/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63254/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63255/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63256/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63257/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63258/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63259/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63260/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63261/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63262/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63263/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63264/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63265/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63267/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63268/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63269/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63270/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63271/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63272/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63273/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63274/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63275/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63276/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63277/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63278/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63279/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63280/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63281/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63282/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63283/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63284/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63285/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63333/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63334/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63335/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63336/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63337/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63338/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63339/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63340/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63341/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63342/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63343/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63344/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63358/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/79125/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/79126/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/79127/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/79128/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/79129/?format=api"
    ],
    "dataLineage": "Data were collected and processed by the project team at the Met Office and submitted to the Centre for Environmental Data Analysis (CEDA).",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/39906/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/39574/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/196940/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/196941/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/196942/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/196943/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/196944/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/196945/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/196946/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/196947/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/196948/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/40399/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2522/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "registered",
            "accessRoles": null,
            "label": "registered: None group",
            "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": []
}