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/6160/?format=api

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

{
    "ob_id": 6160,
    "uuid": "215d6d99e46ceb067e9ee78b89f513d5",
    "title": "NERC Mesosphere-Stratosphere-Troposphere (MST) Radar: mesospheric structure and dynamics oberservations, version 3",
    "abstract": "The Natural Environment Research Council (NERC) Mesosphere-Stratosphere-Troposphere (MST) Radar is operated by the Science and Technology Facilities Council at the Radar Facility's (MSTRF's) site in Capel Dewi, near Aberystwyth, Mid-Wales. The 46.5 MHz pulsed Doppler radar is used primarily for making atmospheric observations over the approximate altitude range 2 - 20 km, i.e. over most of the troposphere and the lower stratosphere - hence the term \"ST-mode\". Additional observations are made over the approximate altitude range 56 - 96 km, i.e. covering the mesosphere - hence the term \"M-mode\" (see related dataset).\r\n\r\nThe instrument has been in operation, using the Dopppler Beam Swinging technique (see linked documentation for further details), since late 1989. It was intially operated on a campaign basis, but switched to quasi-continuous observations (i.e. close to 24-7 operation) in late 1997. \r\n\r\nThis dataset includes radial data products, i.e. range profiles along each beam pointing direction, and the \"Cartesian\" data products that are derived from them in the form of altitude profiles. The latter are used for most purposes. Data products are derived from the version 3 processing scheme, which supersedes earlier versions. Further details can be found via the linked documentation. Radial data products include:\r\n\r\nsignal power (relates to atmospheric structure)\r\nradial velocity (relates to wind speed along the beam pointing direction)\r\nspectral width (relates to turbulence intensity)\r\n\r\nCartesian data products include:\r\n\r\nhorizontal wind components (zonal and meridional)\r\nvertical wind velocity\r\nvertical beam signal power\r\ntropopause altitude\r\nvertical beam spectral width\r\nradar return aspect sensitivity\r\n",
    "keywords": "MST Radar, NERC, mesosphere, SNR, echo power, spectral width",
    "publicationState": "published",
    "dataPublishedTime": "2012-09-27T14:42:59",
    "doiPublishedTime": null,
    "updateFrequency": "daily",
    "status": "ongoing",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/6161/?format=api",
        "dataPath": "/badc/mst/data/mst-products-v3/m-mode",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 32621061977,
        "numberOfFiles": 12972,
        "fileFormat": "Data are netCDF formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/1809/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/515/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8264/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8265/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8266/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8267/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8268/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8269/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8270/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8271/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8272/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8273/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8274/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8275/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8276/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8277/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8278/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8279/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8280/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8281/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8282/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8283/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8284/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8285/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8286/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8287/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8288/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8289/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8290/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8291/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8292/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8293/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8294/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8295/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8296/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8297/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8298/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8299/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8300/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8301/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8302/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8303/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8304/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8305/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8306/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8307/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8308/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8309/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8310/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8311/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/8312/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22318/?format=api"
    ],
    "dataLineage": "Data are acquired by the MST radar facility and sent to the BADC within an hour of acquisition. Data are then immediately ingested into the BADC archives.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/3994/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/25330/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/6117/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26108/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26112/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26106/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26109/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26110/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26111/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26107/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/26113/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/46264/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/6162/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2543/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "registered",
            "accessRoles": null,
            "label": "registered: None group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/missing_licence.pdf",
            "licenceClassifications": "unstated"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}