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/30003/?format=api

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

{
    "ob_id": 30003,
    "uuid": "f91cd3ee7b6243d5b7d41b9beaf397e1",
    "title": "ESA Sea State Climate Change Initiative (Sea_State_cci): Global remote sensing multi-mission along-track significant wave height, L2P product, version 1.1",
    "abstract": "The ESA Sea State Climate Change Initiative (CCI) project has produced global multi-sensor time-series of along-track satellite altimeter significant wave height data (referred to as Level 2P (L2P) data) with a particular focus for use in climate studies.\r\n\r\nThis dataset contains the Version 1.1 Remote Sensing Significant Wave Height product, along-track at approximately 6 km spatial resolution, 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. \r\n\r\nThis first version of the Sea State CCI products is inherited from the GlobWave project building on experience and existing outputs. It extends and improves the GlobWave products which were a post-processing over existing L2 altimeter agency products with additional filtering, corrections and variables. A major improvement consists in a new denoised sea surface height variable using Empirical Mode Decomposition.\r\n\r\nThe altimeter data used in the Sea State CCI dataset v1.1 come from multiple satellite missions spanning from 1991 to 2018 (ERS-1, ERS-2, Topex, Envisat, GFO, CryoSat-2, Jason-1, Jason-2, Jason-3, SARAL). Many altimeters are bi-frequency (Ku-C or Ku-S) and only measurements in the Ku band were used, for consistency reasons, being available on each altimeter but SARAL (Ka band).",
    "keywords": "CCI, Sea State, Significant Wave Height",
    "publicationState": "citable",
    "dataPublishedTime": "2020-01-30T16:56:27",
    "doiPublishedTime": "2020-01-30T17:47:12",
    "updateFrequency": "notPlanned",
    "status": "superseded",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/30002/?format=api",
        "dataPath": "/neodc/esacci/sea_state/data/v1.1_release/l2p/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 465848690169,
        "numberOfFiles": 847907,
        "fileFormat": "Data are in NetCDF format"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/8159/?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/52544/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63576/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66527/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66529/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66539/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67838/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67839/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67848/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67852/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67854/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67856/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/82940/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/82941/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/82942/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/82943/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/82944/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/82945/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/82946/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/82947/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/82948/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/82949/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/82950/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/82951/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/82952/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/82953/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/82954/?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/10695/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/30004/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/30025/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129662/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/146746/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129661/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129663/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129664/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/146747/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129660/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129658/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129665/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129657/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129659/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "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": []
}