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/43742/?format=api

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

{
    "ob_id": 43742,
    "uuid": "e6c4000905f346438f4c4c8d674b1637",
    "title": "EOCIS: CHUK Particulate Matter (PM2.5, PM10), Daily L3C Product, v1.14",
    "abstract": "This dataset contains Particulate Matter (PM2.5, PM10) data produced within the Earth Observation Climate Information Service (EOCIS) project. These data are produced by a machine learning algorithm that combines inputs from satellite, in-situ and analysis data sources. The algorithm generates measurements of the particulate matter (PM) at sizes smaller than 2.5 µm (PM2.5) and 10 µm (PM10). Original level 2 retrievals in the UK region have been reprojected from the instrument swath onto the Climate High-resolution grid for the UK (CHUK) at 100m resolution and composited over daily and monthly timescales. Two versions of each variable are included: with and without the post-processing filtering that is used in the global AOD dataset that is used as an input.",
    "keywords": "Particulate,Matter,PM2.5,PM10,Aerosol,Surface,Temperature,Land,Radiometer,SLSTR,Sea,EOCIS",
    "publicationState": "preview",
    "dataPublishedTime": null,
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "pending",
    "result_field": {
        "ob_id": "https://catalogue.ceda.ac.uk/api/v2/observations/45890/?format=api",
        "dataPath": "/neodc/eocis/data/CHUK/particulate_matter/SLSTR/L3C/daily/v1.14",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 70032665839,
        "numberOfFiles": 4663,
        "fileFormat": "The data are in NetCDF format."
    },
    "timePeriod": "https://catalogue.ceda.ac.uk/api/v2/times/12213/?format=api",
    "geographicExtent": "https://catalogue.ceda.ac.uk/api/v2/bboxes/4727/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/74919/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/74920/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/74921/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/74922/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93324/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93325/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93326/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/93327/?format=api"
    ],
    "dataLineage": "This dataset was produced by Swansea University in the context of the Earth Observation Climate Information Service project.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://catalogue.ceda.ac.uk/api/v2/projects/43216/?format=api"
    ],
    "observationcollection_set": [
        "https://catalogue.ceda.ac.uk/api/v2/observationcollections/45879/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://catalogue.ceda.ac.uk/api/v2/rpis/209282/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/209283/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/209284/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/209285/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/209286/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/209287/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/209288/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/209289/?format=api"
    ],
    "procedureAcquisition": "https://catalogue.ceda.ac.uk/api/v2/acquisitions/43743/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://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": []
}