A Multi-year Analysis of Supraglacial Lake Seasonal Dynamics in the Karakoram

Supraglacial lakes are a key feature of many debris-covered glaciers in the Karakoram region. These lakes are highly dynamic, often forming and draining rapidly on seasonal timescales. However, due to their small size and transient nature, they are largely absent from regional and global glacial lake inventories. In this study, we used Sentinel-1 synthetic aperture radar (SAR) imagery to examine the seasonal (May to September) and interannual (2017 to 2023) dynamics of supraglacial lakes across six glaciers in the Karakoram at scales from 0.001 to 0.50 km2. Our results show that small (