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/37566/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 37566,
    "uuid": "864a46cc65054008857ee5bb772a2a2b",
    "title": "Cloud droplet number concentration, calculated from the MODIS (Moderate resolution imaging spectroradiometer) cloud optical properties retrieval and gridded using different sampling strategies",
    "abstract": "This dataset contains cloud droplet number concentrations (CDNC), gridded to 1 by 1 degree resolution using a variety of sampling methods to select valid retrievals. Data from the MODIS (Moderate resolution imaging spectroradiometer) instruments on both the Terra (morning overpass) and Aqua (Afternoon overpass) satellites are available (indicated by a T or A in the filename). This product is gridded using the MODIS collection 6 definition of a day.  These sampling methods have been compared against multiple flight campaigns, see Gryspeerdt et al., The impact of sampling strategy on the cloud droplet number concentration estimated from satellite data. Atmos. Meas. Tech. 2022.\"\r\n\r\nErrata: The latitude values in these files are currently inverted, resulting in the data in the files appearing 'upside-down'. As a work-around, the data arrays can be reversed along the latitude axis. Corrected versions of the files will be uploaded shortly.'",
    "keywords": "cloud droplet number concentration, CDNC, Nd, MODIS",
    "publicationState": "citable",
    "dataPublishedTime": "2022-06-20T13:51:25",
    "doiPublishedTime": "2022-06-20T13:51:24",
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/37576/?format=api",
        "dataPath": "/badc/deposited2022/modis_cdnc_sampling_gridded/data/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 127148603021,
        "numberOfFiles": 14338,
        "fileFormat": "Data are in NetCDF format"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/10371/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/529/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/6021/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/6022/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/6023/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50559/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50561/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63011/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66755/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66756/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66757/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66758/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66759/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66760/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66761/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66762/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66763/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66764/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66765/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66766/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66767/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66768/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66769/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66770/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66771/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66772/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66773/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66774/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66775/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66776/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66777/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66778/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66779/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66780/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66781/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66782/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66783/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66784/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66785/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66786/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66787/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66788/?format=api"
    ],
    "dataLineage": "Data were produced by the project team and supplied for archiving at the Centre for Environmental Data Analysis (CEDA).  This dataset was derived from collection 6.1 of the MODIS cloud product (MOD06_L2, MYD06_L2",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/12157/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/37577/?format=api"
    ],
    "observationcollection_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/179304/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/179305/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/179306/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/179307/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/179308/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/179309/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/179310/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/179319/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/179311/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/179312/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/179313/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/179314/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/179315/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/179316/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/179317/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/179318/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/37575/?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"
        }
    ]
}