Low-Elevation DEM Sensitivity in Landsat-Based Reconstruction of Long-Term Relative Lake Volume Anomalies
Long-term lake storage monitoring remains challenging in data-scarce high-elevation regions because continuous water-level records and bathymetric data are often unavailable. Annual Landsat-derived areas of Xiao Qaidam Lake from 1996 to 2025 were combined with DEM-based height–area–volume (H–A–V) relationships to recon...