Preprint Open access
Extending Dynamic World Surface Water Mapping to Sentinel-1 with AlphaEarth Embeddings
Dynamic World (DW) maps land use and land cover globally at 10 m from Sentinel-2 (S2) imagery, but only for cloud-free observations, which limits where and when surface water can be mapped. We use the DW water class as weak supervision for a Sentinel-1 (S1) synthetic aperture radar (SAR) model so that DW-like water map …