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/13721/?format=api

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

{
    "ob_id": 13721,
    "uuid": "30b1e79715b34605befa2deff2585580",
    "title": "UARS CLAES data (1991-1993): Version 0008",
    "abstract": "The Cryogenic Limb Array Etalon Spectrometer (CLAES) measured vertical profiles of temperature and concentrations of ozone, methane, water vapour, nitrogen oxides, and other important species, including CFCs, in the stratosphere. CLAES also maps the horizontal and vertical distributions of aerosols in the stratosphere. These measurements are analysed to better understand the photochemical, radiative, and dynamical processes taking place in the ozone layer. This is the third version of CLAES data to be put into the public domain on the NASA-GDAAC. The dataset contains O3, ClONO2, F11, HNO3, N2O, N2O5, NO2, aerosols and temperature measurements. Data are level 3A product (gridded in time and latitude along the satellite track) between 80N - 80S, 10-60 Km, October 1991 - May 1993. This dataset is public.",
    "keywords": "AEROSOLS ATMOSPHERE ATMOSPHERICWATERVAPOR ALTITUDE ATMOSPHERICTEMPERATURE ATMOSPHERICCHEMISTRY",
    "publicationState": "published",
    "dataPublishedTime": "2006-12-10T03:04:33",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/13722/?format=api",
        "dataPath": "/badc/claesl3/data/v0008",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 5620430907,
        "numberOfFiles": 32976,
        "fileFormat": "Data are UARS binary formatted."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/1236/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/6/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21758/?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/22341/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22409/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22411/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22412/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22413/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22414/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22415/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22416/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22417/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22418/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22420/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22421/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22422/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25383/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25385/?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/25394/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25395/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25396/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25397/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25398/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25399/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25400/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25403/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25890/?format=api"
    ],
    "dataLineage": "Data collected between the 1st October 1991 and the 5th May 1993 from 80°S to 80°N,  by the Cryogenic Limb Array Etalon Spectrometer (CLAES). All data acquired as is from NASA for archiving at the BADC. The data are provided in UARS binary format, which can be retrieved by anonymous FTP or through this WWW interface. Software to convert this format to ASCII is available.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/1633/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/4342/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52513/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52514/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52512/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52516/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52517/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52518/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52519/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/52515/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/4347/?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"
        }
    ]
}