Paleoclimate reconstruction and topographic drivers of piedmont glaciers during the LGM

The piedmont glacial landforms on the northern foothills of the Central Himalayas provide critical records of the Last Glacial Maximum (LGM) glaciation, yet the glacier–environment interactions in the Yarlung Zangbo River source region (SYZR) remain poorly constrained. Integrating field surveys, remote sensing, a previously established chronological and glacier reconstruction framework, and a coupled Precipitation-Temperature (P-T) model, this study systematically reconstructs the LGM paleoclimate and investigates its climatic-topographic drivers. Key findings include the following: (1) 20 piedmont glaciers covered 4000 km 2 during the LGM, 9.6 times of modern extent, with the largest lobes in Jiemayangzong and Kubiqu basins; (2) glacier scales show strong negative correlations with basal elevation (5000–5100 m) and slope (

Bedrock · Climate change · Foothills · Glacial period · Glacier · Landform · Last Glacial Maximum · Paleoclimatology · Climate change and permafrost · Cryospheric studies and observations · Geology and Paleoclimatology Research

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