Wet Snow Mapping In Karakoram Using Sar And Topographic Data

Mapping seasonal wet snow (WS) is essential for climate research, hydrological assessments and natural hazards management. It is especially crucial in Karakoram as the the water supply in the region is dominated by snow melting. However, the complex terrain in Karakoram brings great challenge when employing synthetic aperture radar (SAR) data for WS mapping. In this work, we present an algorithm that combines SAR and topographic data for WS mapping. The result shows that the proposed algorithm can efficiently reduce the uncertainty and generate robust WS map on a large scale.