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/7729/?format=api

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

{
    "ob_id": 7729,
    "uuid": "93ad26ca184e2cb202bd76c96aa2c2a1",
    "title": "NAMBLEX: Atmospheric Back Trajectories from the UK Universities Global Atmospheric Modelling Programme (UGAMP)",
    "abstract": "The North Atlantic Marine Boundary Layer Experiment (NAMBLEX) campaign was conducted at Mace Head in Ireland from 24 July 2002 to 3 September 2002. During this campaign a suite of instruments, including several from the Universities Facility for Atmospheric Measurements (UFAM). This dataset contains 21 back trajectories corresponding to arrival on all ECMWF model levels between the ground and mid-troposphere, including surface pressure, temperature, specific humidity, zonal and meridional wind speeds and height from the UK Universities Global Atmospheric Modelling Programme (UGAMP).\r\n",
    "keywords": "NAMBLEX, UGAMP, Atmospheric Chemistry, Boundary Layer, Back Trajectory",
    "publicationState": "published",
    "dataPublishedTime": "2007-02-26T17:10:37",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/12981/?format=api",
        "dataPath": "/badc/namblex/data/ugamp-traj",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 141696479,
        "numberOfFiles": 1230,
        "fileFormat": "The data are human-readable ascii formatted, and IDL routines for decoding back-trajectories are provided."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/2230/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/891/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21787/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21824/?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/22383/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22385/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22387/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23052/?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/25857/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25886/?format=api"
    ],
    "dataLineage": "Data were generated with UK Universities Atmospheric Modelling Programme (UGAMP) trajectory code using ECMWF data. Data provided as is by the NAMBLEX campaign participants to the BADC for archiving.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4994/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/7595/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/7592/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/32063/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/32068/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/32062/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/32065/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/32066/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/32067/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/32069/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/32064/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": "https://api.catalogue.ceda.ac.uk/api/v2/computations/3136/?format=api",
    "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"
        }
    ]
}