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FreeResearchGlobal
Global Multi-Sensor Surface Water Indices Dataset
Monthly global surface water maps from Landsat-8 and Sentinel-2 using three water indices (NDWI, MNDWI, WI2015) at 300m resolution. Published 2025 covering 2019-2021 with ongoing updates
doi.org
At a glance
- Region
- Global
- Coverage
- Global at 300m resolution, monthly
- Access
- Free
- Category
- Research
What's inside
- Surface Water Indices
- NDWI Maps
- Water Body Mapping
- Monthly 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 Indices
- 02
Change over time
See how lakes and wetlands have grown or shrunk.
- 03
No-gauge areas
Monitor places with no ground stations.
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.
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