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/1247/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 1247,
    "uuid": "fe9a02b85b50d3ee1d0b7366355bb9d8",
    "title": "MIDAS: Global CLIMAT Upper Air Values from Standard Pressure Levels",
    "abstract": "The global CLIMAT upper air values from standard pressure levels data describe monthly values, at specified pressure levels, of atmospheric pressure, air temperature, geopotential height, wind steadiness factor, mean vector wind direction and dew point. The measurements are attained by observation stations worldwide and transmitted within FM 75-VI CLIMAT TEMP messages. The data span from 1946 to 2007.",
    "keywords": "Met Office, MIDAS, CLIMAT, upper air, standard pressure levels",
    "publicationState": "published",
    "dataPublishedTime": "2006-07-26T15:29:25",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/1248/?format=api",
        "dataPath": "/badc/ukmo-midas/data/CURL",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 199684481,
        "numberOfFiles": 64,
        "fileFormat": "Data are ASCII formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/367/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/1/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21914/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21918/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21921/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21925/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21927/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21929/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21930/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21931/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21936/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21943/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21955/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21958/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25869/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25870/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25871/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25872/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25873/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25874/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25875/?format=api"
    ],
    "dataLineage": "Data collated by the Met Office and archived in the Met Office's MIDAS database. Data are extracted from a sub-set of available tables and delivered to BADC approximately on a monthly basis as flat files.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/911/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/1186/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/1183/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/3905/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/3907/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/3908/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/3909/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/3911/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/44783/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/44784/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/3906/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/1250/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2532/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "restricted",
            "accessRoles": "ukmo_wx",
            "label": "restricted: ukmo_wx group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/ukmo_agreement.pdf",
            "licenceClassifications": "academic"
        },
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2533/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "restricted",
            "accessRoles": "ukmo_wx_gov",
            "label": "restricted: ukmo_wx_gov group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/ukmo_agreement_gov.pdf",
            "licenceClassifications": "policy"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}