Hydroweb Satellite Altimetry for Inland Waters (LEGOS/CNES)
LEGOS/CNES Hydroweb provides satellite altimetry-derived water levels for approximately 1,000 lakes, reservoirs, and 11,000 river reaches worldwide, using multi-mission data since 1992.
hydroweb.theia-land.fr
At a glance
- Region
- France (Global)
- Coverage
- Global
- Access
- Registration Required
- Category
- Research
What's inside
- Lake Water Level
- River Water Level
- Reservoir Level
- Satellite Altimetry
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: Lake Water Level
- 02
Change over time
See how lakes and wetlands have grown or shrunk.
- 03
No-gauge areas
Monitor places with no ground stations.
Because it has: Satellite Altimetry
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
Segmentation
Map water, crops and land use pixel by pixel with deep learning.
Related water data
- Theia Catalogue - Sentinel-3 Lake Water Level Demonstration ProductGlobal | Free
- Theia Data Terra Catalogue - Hydroweb & Surface Water ProductsGlobal | Free
- C3S Satellite Lake Water LevelGlobal | Registration Required
- Hydroweb LEGOS - Satellite Altimetry Water Levels of Rivers and LakesGlobal | Free
- SWOT Lake Water Surface ElevationGlobal | Registration Required
- Theia / Data Terra Catalogue - Hydroweb Operational Altimetry River & Lake Water LevelGlobal | Free
Find more water data
Search and compare 1,900+ water data sources by region, type and access.