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/44642/?format=api
{ "ob_id": 44642, "uuid": "c5e585820d1240e89eea85ff2c9b4569", "title": "ESA River Discharge Climate Change Initiative (RD_cci): Nadir radar altimeters Water Level product, v2.0", "abstract": "This dataset contains water level (WL) data from the ESA Climate Change Initiative River Discharge project (RD_cci). Water level in this context corresponds to the distance between river surface water and a reference surface (the WGS84 ellipsoid). This physical variable might also be referred to as Water Surface Elevation (WSE) in other dataset or publications.\r\n\r\nThis version of the dataset is v2.0\r\n\r\nThese river water level time series have been computed in at 54 locations (within 18 river basins). The data has been derived from nadir viewing satellite radar altimeter missions (ERS-2, Envisat, Saral, Topex-Poseidon, Jason-1, Jason-2, Jason-3, Sentinel-3A/B and Sentinel 6A). At each location, time series are provided for each available single nadir radar altimetry mission. Based on these single mission time series, merged multi-missions WL time series (with two different methodologies for some basins) have also been produced.", "keywords": "CCI, Water Level, River Discharge", "publicationState": "citable", "dataPublishedTime": "2025-12-02T12:06:40", "doiPublishedTime": "2025-12-02T14:59:13.063674", "updateFrequency": "notPlanned", "status": "completed", "result_field": { "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/45145/?format=api", "dataPath": "/neodc/esacci/river_discharge/data/WL/v2.0/", "oldDataPath": [], "storageLocation": "internal", "storageStatus": "online", "volume": 46403303, "numberOfFiles": 871, "fileFormat": "Data are in NetCDF and CSV format" }, "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/11558/?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/50559/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50561/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63576/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75511/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75512/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75513/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75514/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75515/?format=api" ], "dataLineage": "Data were produced by the project team and supplied for archiving at the Centre for Environmental Data Analysis (CEDA).", "removedDataTime": null, "removedDataReason": "", "language": "English", "identifier_set": [ "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/13655/?format=api" ], "projects": [ "https://api.catalogue.ceda.ac.uk/api/v2/projects/41537/?format=api" ], "observationcollection_set": [], "responsiblepartyinfo_set": [ "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213713/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213714/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213715/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213716/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213717/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213718/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213719/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213720/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213721/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213722/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213723/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213724/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213725/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213726/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213727/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213728/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/215213/?format=api" ], "procedureAcquisition": null, "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/45148/?format=api", "procedureComputation": null, "permissions": [ { "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2612/?format=api", "useLimitation": null, "accessConstraints": null, "accessCategory": "public", "accessRoles": null, "label": "public: None group", "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/esacci_river_discharge_terms_and_conditions.pdf", "licenceClassifications": "any" } ], "discoveryKeywords": [ { "ob_id": 1140, "name": "ESACCI" } ] }