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/3059/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 3059,
    "uuid": "b877613c24db79e52ddeeb09dd645772",
    "title": "Polluted Troposphere TORCH1: Vertical wind profile data from the Universities' Facility for Atmospheric Measurement's (UFAM) 1290mhz Degreane Mobile Wind Profiler deployed at Writtle",
    "abstract": "Data were collected by Universities' Facility for Atmospheric Measurement's (UFAM) 1290mhz Degreane Mobile Wind Profiler, deployed at the Writtle Agriculture College, Essex, in August 2003 as part of the Tropospheric ORganic CHemistry Experiment Project (TORCH) 1 field campaign. During the field campaign the mobile wind profiler obtained vertical profiles of the horizontal and vertical wind components. For each signal beam profiles of the signal to noise (SNR) ratio and spectral widths were also taken. The data consist of files available in the NASA-AMES ASCII and netCDF binary formats and plots in PNG format. Data are available to all BADC registered users under the Government Open Data licence.",
    "keywords": "UFAM, NCAS, AMF, radar, wind profiler, boundary layer wind profiler, turbulence, thermals, boundary layer structure, radar wind profiler, Doppler radar, UHF radar, 'Clear' air radar, morning transition, convective boundary layer, mixed layer, entrainment zone, transitional boundary layer, nocturnal boundary layer, lower level jet, nocturnal jet, weather fronts, sting jets",
    "publicationState": "published",
    "dataPublishedTime": "2003-03-15T16:07:03",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/3060/?format=api",
        "dataPath": "/badc/polluted-tropo/data/torch/torch1_2003/aber-radar-1290mhz",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 45362894,
        "numberOfFiles": 369,
        "fileFormat": "Data are NASA Ames formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/820/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/892/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3037/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3038/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/3039/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52194/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52195/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52196/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52197/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52198/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52199/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52200/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52201/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52202/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52203/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52204/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52205/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52206/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52207/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52208/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52209/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52210/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52211/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52212/?format=api"
    ],
    "dataLineage": "Data were collected by the instrument at Writtle College, near Chelmsford, Essex between 27th July - 30th August 2003 before processing by the instrument scientist and delivered for archiving at the BADC.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2104/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/14344/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/3058/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/11685/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13742/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13743/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13744/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13745/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13747/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/43460/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/43461/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13741/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/46947/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/3062/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2522/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "registered",
            "accessRoles": null,
            "label": "registered: None group",
            "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}