Observation Instance – Django REST framework

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/29946/?format=api

HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 29946,
    "uuid": "b6b6266415634a6ab242702d7ee6be05",
    "title": "ESM-SnowMIP meteorological and evaluation datasets at ten reference sites (in situ and bias corrected reanalysis data)",
    "abstract": "In situ meteorological forcing and evaluation data, and bias-corrected reanalysis forcing data for cold regions modelling at ten sites: one maritime (Sapporo, Japan), one arctic (Sodankylä, Finland), three boreal (Old Aspen, Old Jack Pine and Old Black Spruce, Saskatchewan, Canada) and five mid-latitude alpine (Col de Porte, France; Reynolds Mountain East, Idaho, USA, Senator Beck and Swamp Angel, Colorado, USA; Weissfluhjoch, Switzerland). \r\n\r\nThe long-term datasets are the reference sites chosen for evaluating models participating in the Earth System Model-Snow Model Intercomparison Project (ESM-SnowMIP). Periods covered by the in situ data span from 1994 to 2016 with the period of available data varying by location from between 7 and 20 years of hourly meteorological data, with evaluation data (snow depth, snow water equivalent, albedo, soil temperature and surface temperature) available at varying temporal intervals. \r\n\r\n30-year (1980-2010) time-series have been extracted from a global gridded surface meteorology dataset (Global Soil Wetness Project Phase 3) for the grid cells containing the reference sites, interpolated to one-hour timesteps and bias corrected.",
    "keywords": "Snow, Long-Term Record, Modelling, Observation",
    "publicationState": "published",
    "dataPublishedTime": "2020-04-23T16:42:19",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/29947/?format=api",
        "dataPath": "/badc/rescues/data/ESM-SnowMIP",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 330367928,
        "numberOfFiles": 32,
        "fileFormat": "Data are netCDF format."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/8188/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/2562/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61865/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61866/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61867/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61868/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61869/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61870/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61871/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61872/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61873/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61874/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61875/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61876/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61877/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61878/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61879/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61880/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61881/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61882/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61883/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61884/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61885/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61886/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61887/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61888/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/61889/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80059/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80060/?format=api"
    ],
    "dataLineage": "Data are as delivered by ReSCUES project.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/24878/?format=api"
    ],
    "observationcollection_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/130379/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/130375/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/130383/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/130374/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/130377/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/130378/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/130380/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/130382/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/130376/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/130381/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/29950/?format=api",
    "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"
        }
    ]
}