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/32043/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 32043,
    "uuid": "29c70585725e4e308ceb2edf3739520a",
    "title": "Ultrafine and Submicron Particles in the Urban Environment in Thailand: Aerosol concentration and composition size distributions in four locations near Bangkok, Thailand",
    "abstract": "Particulate matter in up to13 size fractions was collected in up to 72 hour samples from a 5th floor window in Lak Si, Bangkok, Thailand; and from Pollution Control Department (PCD) sites in Ayutthaya, Bang Phli and Chok Chai, in or near Bangkok using a Dekati Electrical Low Pressure Impactor Classic (ELPI). Samples were weighed and analysed for concentrations of the following elements: Mg, Al, V, Cr, Mn, Fe, Co, Ni, Cu. Zn,  As, Se, Mo, Cd, Sb, Ba and Pb. The data covered three seasons in Bangkok, hot, cool and rainy, from February 2018 until December 2018. Measurements were taken by the staff of the Toxicology group in the Chulabhorn Research Institute, Thailand and the Atmospheric Chemistry Research Group in the University of Bristol, UK, with the assistance of the PCD, Bangkok, at their sites.",
    "keywords": "Thailand, PM10, composition, meteorology",
    "publicationState": "published",
    "dataPublishedTime": "2021-05-14T08:29:17",
    "doiPublishedTime": null,
    "updateFrequency": "",
    "status": "ongoing",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/32044/?format=api",
        "dataPath": "/badc/deposited2020/thailand-particles/data/bristol-elpi/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 84886,
        "numberOfFiles": 3,
        "fileFormat": "Data are BADC-CSV formatted."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/8787/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/2543/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63222/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63225/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63232/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67565/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67566/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67567/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67568/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67569/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67570/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67571/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67572/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67573/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67574/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67575/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67576/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67577/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67578/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67579/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67580/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67581/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67582/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67583/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67584/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67585/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67586/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67587/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67588/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67589/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67590/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67591/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67592/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67593/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67594/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67595/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67596/?format=api"
    ],
    "dataLineage": "Data sent by the project participants to the Centre for Environmental Data Anaylsis (CEDA) for archiving.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/28097/?format=api"
    ],
    "observationcollection_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/142015/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/142016/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/142017/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/142019/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/142020/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/142021/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/142018/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/142022/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/142023/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/168956/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/32046/?format=api",
    "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": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}