ESTABLISHMENT AND PRACTICE OF UNDERGRADUATE EDUCATION SYSTEM FOR MARINE SURVEYING AND MAPPING IN THE NEW STAGE

This study integrates ICESat-2 observations with multispectral imagery to estimate supraglacial lake depths on the Greenland Ice Sheet using satellite-derived bathymetry (SDB). By accounting for depth-dependent reflectance variations, we apply spectral stratification to improve SDB inversion accuracy. Owing to its low cost, strong spatiotemporal coverage, and enhanced accuracy, this approach provides valuable insights for monitoring supraglacial lake water depths.