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/7224/?format=api

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

{
    "ob_id": 7224,
    "uuid": "44ea207df48e328fa56f754fc4fa97ca",
    "title": "NOAA-CIRES Twentieth Century Reanalysis Project: Ensemble means and spreads for 1891 to present in GRIB format, Version II",
    "abstract": "The 20th Century Reanalysis dataset provides 6 hourly analyses on a Global 2.0 degree latitude x 2.0 degree longitude global grid from 1871 to present produced from a series of 56-member ensemble runs. For each output time step ensemble means and associated spreads have been calculated and form a continuous dataset over the entire timespan of the dataset. The data contain fields at the surface and on pressure levels from 1000 hPa to 10 hPa.\r\n\r\nThe dataset authors request that the following acknowledgment be included in all papers using the dataset:\r\n\r\n'Support for the Twentieth Century Reanalysis Project dataset is provided by the U.S. Department of Energy, Office of Science Innovative and Novel Computational Impact on Theory and Experiment (DOE INCITE - http://www.doeleadershipcomputing.org/incite-program/ ) program, and Office of Biological and Environmental Research (BER - http://science.energy.gov/ber/ ), and by the National Oceanic and Atmospheric Administration Climate Program Office (http://www.climate.noaa.gov/)'",
    "keywords": "NOAA, CIRES, reanalysis, model, ensemble, means, spread",
    "publicationState": "published",
    "dataPublishedTime": "2012-10-16T11:55:41",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/7225/?format=api",
        "dataPath": "/badc/noaa-20cr-v2/data/grib/means_spreads",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 9674078061180,
        "numberOfFiles": 3300043,
        "fileFormat": "Data are WMO GRIB1 formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/2081/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/1/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [],
    "dataLineage": "The Twentieth Century Reanalysis data were produced by the National Centers for Atmospheric Prediction (NCEP) and archived at the U.S. Department of Energy's National Energy Research Scientific Computing Center (NERSC). The BADC obtained a complete copy of these data as archived at NERSC and have archived the data in the BADC archives splitting the data into the ensemble means with the associated spreads and the ensemble members for each of the runs making up the reanalysis dataset.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4696/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/7226/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/7223/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/30422/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/30424/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/30425/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/30426/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/30428/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41915/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41937/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/30423/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41916/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41917/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41918/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41919/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41920/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41921/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41922/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41923/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41924/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41925/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41926/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41927/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41928/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41929/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41930/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41931/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41932/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41933/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41934/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41935/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41936/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/45005/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/45006/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/45007/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/45008/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/45009/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/45010/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/7229/?format=api",
    "procedureComputation": null,
    "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"
        }
    ]
}