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/33301/?format=api

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

{
    "ob_id": 33301,
    "uuid": "81bab8b378db443db4482a5961a58ec1",
    "title": "ESA Sea State Climate Change Initiative (Sea_State_cci): Global remote sensing multi-mission along-track significant wave height (SWH) from SAR WV onboard Sentinel-1A & 1B, L2P product, release version 3.",
    "abstract": "The ESA Sea State Climate Change Initiative (CCI) project has produced global multi-sensor time-series of along-track satellite synthetic aperture radar (SAR) significant wave height (SWH) data (referred to as SAR WV onboard Sentinel-1 Level 2P (L2P) SWH data) with a particular focus for use in climate studies.\r\n \r\nThis dataset contains the Sentinel-1 SAR Remote Sensing Significant Wave Height product (version 1.0), which is part of the ESA Sea State CCI Version 3.0 release.   This product provides along-track SWH measurements at 20km resolution every 100km, processed using the Quach et al statistical model , separated per satellite and pass, including all measurements with flags, corrections and extra parameters from other sources. These are expert products with rich content and no data loss. The SAR Wave Mode data used in the Sea State CCI dataset v3 come from Sentinel-1 satellite missions spanning from 2015 to 2021 (Sentinel-1 A, Sentinel-1 B)",
    "keywords": "CCI, Sea State, Significant Wave Height, SAR",
    "publicationState": "citable",
    "dataPublishedTime": "2022-10-12T14:26:27",
    "doiPublishedTime": "2022-10-13T06:51:07",
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/38301/?format=api",
        "dataPath": "/neodc/esacci/sea_state/data/v3_release/sar/l2p/sentinel1/swh/v1.0/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 9147079125,
        "numberOfFiles": 127451,
        "fileFormat": "Data are in NetCDF format"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/10559/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/2576/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "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/66538/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66539/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67859/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67860/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67861/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67862/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67863/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67864/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67865/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67866/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67867/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67868/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67869/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67870/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67871/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67872/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67873/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67874/?format=api"
    ],
    "dataLineage": "Data was produced by the ESA Sea State CCI team at Ifremer and was transferred to CEDA as part of the ESA CCI Open Data Portal project.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/12216/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/30004/?format=api"
    ],
    "observationcollection_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/148710/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/148711/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/148712/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/148713/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/148714/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/148715/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/148716/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/182272/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/182273/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/148719/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/182274/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/182275/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/182276/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/38296/?format=api",
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2604/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/esacci_sea_state_terms_and_conditions.pdf",
            "licenceClassifications": ""
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1140,
            "name": "ESACCI"
        }
    ]
}