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/1128/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 1128,
    "uuid": "4ec69a2101fc5cddeb4b86d5912abec4",
    "title": "Airborne Southern Hemisphere Ozone Experiment (ASHOE) / Measurements for Assessing the Effects of Stratospheric Aircraft (MAESA): ER-2 Aircraft data",
    "abstract": "Airborne Southern Hemisphere Ozone Experiment and Measurements for Assessing the Effects of Stratospheric Aircraft (ASHOE/MAESA) was a combined experiment which was conducted in four phases between March and November 1994 at NASA Ames Research Center, California; Barbers Point, Hawaii; and Christchurch, New Zealand. The data consist of in situ and remotely sensed measurements collected onboard the NASA ER-2 aircraft (including O3, H2O, N2O, CO2, CH4, CO, H2, SF6 and a wide range of CFCs). Theory teams provided calculations of: meteorological parameters in the form of partial hemispheric analyses, cross-sections along the ER-2 flight track, interpolations to the ER-2 flight path, and back- trajectories of selected parcels along the ER-2 flight path; photodissociation rates of selected chemical species along the ER-2 flight path; and cloud properties along the ER-2 flight track.",
    "keywords": "ASHOE, MAESA, ER-2",
    "publicationState": "published",
    "dataPublishedTime": "2007-01-29T16:59:42",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/1129/?format=api",
        "dataPath": "/badc/CDs/ashoe94/data/er2",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 312794288,
        "numberOfFiles": 1008,
        "fileFormat": "Data are NASA Ames formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/304/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/16/?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/21764/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21771/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21778/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21779/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21780/?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/22320/?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/22422/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22424/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22432/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22443/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22444/?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/22890/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23106/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23127/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23128/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23130/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23131/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23132/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23133/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23134/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25381/?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/25387/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25388/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25390/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25391/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25392/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25393/?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/25398/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25399/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25404/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25843/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25846/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25850/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25852/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25853/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25854/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25855/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25856/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25857/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25858/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25859/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25860/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25863/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25864/?format=api"
    ],
    "dataLineage": "Data were collected onboard the NASA ER-2 aircraft and SAGE II satellite. CD-ROM published and obtained from NASA for archiving at the BADC.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/833/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/834/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/814/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/815/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/813/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/816/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/818/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/807/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/821/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/812/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/817/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/803/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/808/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/827/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/811/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/830/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/824/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/1078/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/1075/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/3595/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/3599/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/3602/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/3594/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/3593/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/3596/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/3597/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/3598/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/3600/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/3601/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/13874/?format=api",
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2521/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/missing_licence.pdf",
            "licenceClassifications": "unstated"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}