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/3827/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 3827,
    "uuid": "76c8a9f9c14545fc4fb11e4aceb148e5",
    "title": "ECMWF Operational Orography Data",
    "abstract": "Orography files for the European Centre for Medium-Range Weather Forecasts's (ECMWF) operational forecast model. Archived data are on the 1.125 and 2.5 degree regular longitude-latitude grids, N80 (full) Gaussian grid and Spectral (T106) grid. These files are updated each time the model orography is changed.  For the Operational data (March 1994-present day) there are orography files for the following dates: 1 March 1994, 4 April 1995, 8 September 1996, 10 December 1996, 1 April 1998 and 12 October 1999. The orography for the ERA-15 project was constant so only the start date orography is stored here: i.e. for 1 Jan 1979. The spectral orography file only contains the orography data (surface geopotential). Depending on the age and grid type, the remaining files contain some of the constant fields:  Geopotential (at the surface, orography), Standard deviation of orography, Anisotropy of subgrid scale orography, Angle of subgrid scale orography, Slope of subgrid scale orography, Land/Sea mask, EW component of sub-grid scale orographic variance, NScomponent of sub-grid scale orographic variance, NWSE component of sub-grid scale orographic variance, NESW component of sub-grid scale orographic variance.",
    "keywords": "ECMWF, operational, forecast, analysis, surface, model, Orography Data",
    "publicationState": "published",
    "dataPublishedTime": "2012-05-25T15:09:16",
    "doiPublishedTime": null,
    "updateFrequency": "daily",
    "status": "ongoing",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/3828/?format=api",
        "dataPath": "/badc/ecmwf-op/data/orography",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 13754346,
        "numberOfFiles": 34,
        "fileFormat": "Data are GRIB-1 formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/1091/?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/13194/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/13197/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/20939/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21780/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21824/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21911/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21919/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21955/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21962/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22320/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22321/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22353/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22355/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22857/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22859/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22862/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22864/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22866/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22868/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22869/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22870/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22876/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23052/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23093/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23096/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23100/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23144/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23257/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23259/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23260/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23401/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23402/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23403/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23404/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23405/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23406/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23408/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23410/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23423/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23543/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23545/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23546/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23547/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23549/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23550/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23551/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23553/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23554/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23555/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23556/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23557/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23558/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25382/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25384/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25388/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25393/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25846/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25852/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25857/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25859/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25870/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25876/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25884/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25891/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25908/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25911/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25912/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25927/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25929/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25956/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/26003/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/26004/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/26005/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/26006/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/26007/?format=api"
    ],
    "dataLineage": "Data extracted from European Centre for Medium-Range Weather Forecasts (ECMWF) MARS system and transfered to BADC daily, 10 days in arrears of production.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2567/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/3459/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/3826/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/18958/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/18963/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/18957/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/18961/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/18962/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/18964/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/18960/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/18959/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": "https://api.catalogue.ceda.ac.uk/api/v2/computations/3829/?format=api",
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2609/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "restricted",
            "accessRoles": "ecmwfop",
            "label": "restricted: ecmwfop group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/ecmwf_op_agreement.pdf",
            "licenceClassifications": "academic"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}