Theia Catalogue - SWOT Level-2 HR Raster 250m Collection
Theia/Data Terra catalogue collection distributing SWOT KaRIn Level-2 High Rate raster products (250 m) of water surface elevation and extent, mirrored by CNES alongside NASA PO.DAAC.
catalogue.theia.data-terra.org
At a glance
- Region
- France (Global)
- Coverage
- Global
- Access
- Free
- Category
- Research Institute
- Last updated
- 2026
What's inside
- SWOT
- water surface elevation
- raster
- surface water extent
What you can do with it
Typical work that data of this type supports.
- 01
Storage tracking
Follow storage and releases through the season.
Because it has: surface water extent
- 02
Change over time
See how lakes and wetlands have grown or shrunk.
- 03
Operations
Support release and supply decisions.
Where AI adds value
Ideas for machine learning and AI agents built on this kind of data.
- 01
Storage from space
Estimate volume from satellite water area and altimetry.
- 02
Release decisions
Optimise releases against inflow forecasts.
- 03
Shrinkage alerts
Detect water bodies that are drying or being encroached.
Machine access and documentation
Open API
STAC/OpenSearch collection API
Licence: Open data
Listed in our registry of open water APIs, which WaterDataGPT can query live.
Related water data
- PO.DAAC Cookbook - SWOT Hydrology Data AccessGlobal | Free
- SWOT High-Resolution Water Mask RasterGlobal | Registration Required
- Theia / Data Terra Catalogue - Hydroweb Operational Altimetry River & Lake Water LevelGlobal | Free
- Theia Data Terra Catalogue - Hydroweb & Surface Water ProductsGlobal | Free
- NASA SWOT River Discharge v3Global | Free
- OPERA Dynamic Surface Water Extent (DSWx-S1)Global | Free
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