Landsat Level-3 Dynamic Surface Water Extent (DSWE) Science Products provide information that represents surface water inundation as detected in cloud-, shadow-, and snow-free pixels, in six acquisition-based raster files.
Collection 1 DSWE
Products created from data acquired 1982 - 2021 for Landsat 4-5 TM, Landsat 7 ETM+, and Landsat 8 OLI/TIRS.
Collection 2 DSWE
Products created from data acquired 1982 - present for Landsat 4-5 TM, Landsat 7 ETM+, and Landsat 8 OLI/TIRS. Landsat 9 will be added later in 2022.
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Landsat DSWE products provide important information about the existence and condition of surface water.
The table below displays how different communities use Landsat DSWE products in their research.
| Community | Potential use |
|---|---|
| Hydrologic science/ Water resource management | Hydrologic modeling (local to national scale), Large river discharge estimation, local level surface storage reservoir monitoring |
| Biologic science/Resource management | Habitat assessment, minimum flow requirement analyses |
| Wetland science/Resource management | Wetland delineation and monitoring |
| Climate science/Change response | Energy balance and carbon cycling studies and modeling |
| Emergency preparedness and response | Flood mitigation and recovery, aid distribution, insurance underwriting; drought monitoring |
| Geospatial data providers | Land cover and cartographic data enhancement |
| State and local government | Storm water best management practices, pond and reservoir monitoring |
The images and animations below are examples of how Landsat DSWE data are used.
