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/27601/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 27601,
    "uuid": "631e1f22d1754b78b5a64a3d66f4ce73",
    "title": "FIDUCEO:  Fundamental Climate Data Record of recalibrated brightness temperatures for the Advanced Very-High-Resolution Radiometer (AVHRR) with ten member ensemble of perturbed level1 data, 2006 - 2016,  v1.0",
    "abstract": "This Fundamental Climate Data Record (FDCR) ensemble product contains both recalibrated AVHRR/3 MetOp-A Radiance/Brightness Temperature data with associated metrologically traceable uncertainties in the FIDUCEO FCDR format. It also contains files containing an Ensemble dataset consisting of perturbations to the associated FIDUCEO FCDR radiances and brightness temperatures.  By applying the 10 perturbations to the baseline FCDR radiances and brightness temperatures a user is able to generate 10 sets of new measurements whose variance capture the associated underlying uncertainty distributions contained in the Easy FCDR itself. \r\n\r\nThe FIDelity and Uncertainty in Climate data records from Earth Observations (FIDUCEO)  project AVHRR FCDR improves on existing AVHRR level-1B: in the infrared the calibration has been improved with a measurement function approach such that the data is of better quality (noise has been reduced, outliers have been filtered) the metrologically traceable uncertainties have been derived together with their associated effects, cross-channel correlations and long-term correlation structures have now been calculated from the processed data and are being understood and used to improve data quality and consistency. For the Ensemble product the sensors have been calibrated against the Advanced Along-Track Scanning Radiometer (AATSR) sensor with additional corrections to calibration parameters which make the data better able to derive sea surface temperature estimates that are consistent with theInternational Comprehensive Ocean-Atmosphere Data Set (ICOADS) drifting buoy network. Because the Ensemble has been tuned for Sea Surface Temperature retrieval it should only be used over ocean scenes.",
    "keywords": "FIDUCEO. AVHRR, ensemble, uncertainty",
    "publicationState": "published",
    "dataPublishedTime": "2019-11-08T17:25:21",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/28106/?format=api",
        "dataPath": "/neodc/fiduceo/data/fcdr/avhrr/v1.00/ensemble/metopa/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 3738753429225,
        "numberOfFiles": 163579,
        "fileFormat": "The data files are  cf compliant NetCDF  version 4 .  See file format specification in the documentation for further information"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/7558/?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/17495/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/17496/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/26710/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/26714/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/26719/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51186/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/51187/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/57331/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/68476/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/69983/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/69984/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70200/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70201/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70202/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70203/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70204/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70205/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70206/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70207/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70208/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70209/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70210/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70211/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70212/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70213/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70214/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70215/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70216/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70217/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70218/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70219/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70220/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70221/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70222/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70223/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70224/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70225/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70226/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70227/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70228/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70229/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70230/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70231/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70232/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70233/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70234/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70235/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70236/?format=api"
    ],
    "dataLineage": "Supplied to CEDA for archival by Claire Bulgin of the University of Reading on behalf of the H2020 FIDUCEO project",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/27632/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/27633/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/30128/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/118319/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/118321/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/118323/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/118316/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/118320/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/115410/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/118311/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/118317/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/118318/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/118322/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/118312/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/118313/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/118310/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/118314/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/118315/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/28107/?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"
        }
    ]
}