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/5376/?format=api

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

{
    "ob_id": 5376,
    "uuid": "d42dc559b35b24fb762c77ab391b82d1",
    "title": "Airborne Arctic Stratospheric Expedition II (AASE II) Project Ozonesondes measurements at Alert, Churchill, Goose Bay, Iqaluit, Stony Plain and Resolute in Canada",
    "abstract": "The Airborne Arctic Stratospheric Expedition II (AASE II) which was based in Bangor, Maine between October 1991 and March 1992, with ER-2 flights from Ames Research Center, Fairbanks (Alaska), and Bangor; and DC-8 flights from Ames, Bangor, Anchorage (Alaska), Stavanger (Norway), and Tahiti, was a follow-up to an earlier AASE campaign in 1989. The dataset consists of measurements collected of ozonesonde soundings from six Canadian stations, global grid point values of Nimbus 7 TOMS ozone, and selected radiosonde soundings. Theory teams provided calculations of potential vorticity, temperature, geopotential, horizontal winds, parcel back trajectories, and concentrations of short lived species along the aircraft flight tracks; and northern hemispheric analyses of potential vorticity, temperature, geopotential, horizontal winds, and radiative heating rates.",
    "keywords": "ATMOSPHERICWINDS ATMOSPHERE ATMOSPHERICTEMPERATURE ALTITUDE ATMOSPHERICCHEMISTRY",
    "publicationState": "published",
    "dataPublishedTime": "2007-01-26T01:24:12",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/5377/?format=api",
        "dataPath": "/badc/CDs/aase9192/data/o3sonde",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 1344891,
        "numberOfFiles": 235,
        "fileFormat": "Data are NASA Ames formatted. "
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/1547/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/745/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/6868/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21771/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21817/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21823/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21824/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22321/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22341/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22390/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22426/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22445/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22589/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22590/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25382/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25383/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25386/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25388/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25391/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25394/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25396/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25400/?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"
    ],
    "dataLineage": "Data collected onboard the NASA ER-2 and DC-8 aircraft based in Bangor, Maine between October 1991 and March 1992.\r\nCopy of CD-ROM published by NASA contains the final data from the Airborne Arctic Stratospheric Expedition II (AASE II).",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/3510/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/8555/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/8556/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/8557/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/8558/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/8559/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/8560/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/5364/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/5361/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/23628/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/23633/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/23627/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/23630/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/23631/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/23632/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/23634/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/23629/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/5379/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2528/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "http://creativecommons.org/licenses/by/4.0/",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}