Characteristics of Musta Glacier surges and their responses to climate change between 1976 and 2023  

作　　者：Yong-Peng GAO Shi-Yin LIU Jin-Liang WANG Xiao-Jun YAO Miao-Miao QI Peng-Bin LIANG Jian-Xin MU Xing-Gang MA Yu ZHU Fu-Ming XIE Zong-Li JIANG Zhen ZHANG 

机构地区：[1]Yunnan Normal University,Kunming 650500,China [2]Institute of International Rivers and Eco-Security,Yunnan University,Kunming 650091,China [3]Key Laboratory of Resources and Environmental Remote Sensing for Universities in Yunnan,Kunming 650500,China [4]Key Laboratory of Resource Environment and Sustainable Development of Oasis,Northwest Normal University,Gansu Province,Lanzhou 730070,China [5]School of Ecology and Environmental Science,Qinghai University of Science and Technology,Xining 810008,China [6]Key Laboratory of Cryospheric Science and Frozen Soil Engineering/Tian Shan Glaciological Station,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,Gansu,China [7]National Field Science Observation and Research Station of Yulong Snow Mountain Cryosphere and Sustainable Development,Northwest Institute of EcoEnvironment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China [8]School of Earth Sciences and Spatial Information Engineering,Hunan University of Science and Technology,Xiangtan 411201,China [9]School of Geomatics,Anhui University of Science and Technology,Huainan 232001,China

出　　处：《Advances in Climate Change Research》2025年第1期125-140,共16页气候变化研究进展(英文版)

基　　金：supported by Postdoctoral research start-up project of Yunnan Normal University(01300205020503329);the Key Laboratory of Cryospheric Science and Frozen Soil Engineering(CSFSE-ZZ-2403);the Enhancement Program for Research Capabilities in the Faculty of Geography(01300205020516083/002);Postdoctoral research project,Faculty of Geography,Yunnan Normal University(01300205020516079);the National Natural Science Foundation of China(42301166);the Top-notch Talent of the Qinghai Province Kunlun Talent.High-end Innovation and Entrepreneurship Talent program(2023-QLGKLYCZX-001);the Program for Innovative Research Team(in Science and Technology)in the University of Yunnan Province,IRTSTYN.

摘　　要：Understanding the differential responses of various tributaries of the same glacier to climate change under similar climatic conditions in the Karakoram is crucial for unraveling the complexity of glacier dynamics in this region.This study systematically examines the surface elevation,flow velocity,morphological changes,and climate responses for different tributary glaciers of the Musta Glacier,using multi-source remote sensing imagery and meteorological reanalysis data from 1976 to 2023.The findings reveal that the tributaries of Musta Glacier experienced a total of nine surges,with an average duration exceeding ten years.These surges typically began in spring and summer and concluded in summer and autumn.During these events,the glaciers transferred an estimated 1.32 km^(3)of material downstream,resulting in an average thickening of over 30 m in the receiving area.The analysis of velocities reveals that the acceleration phase of Musta Glacier tributary surges ranges from 1 to 12 years,with an average duration exceeding 6 years,while the deceleration phase consistently lasts less than 4 years.Among the tributaries,the South Chongtar Glacier exhibits the most rapid surge dynamics,with a total surge duration of just 5 years.Additionally,all surging tributaries of Musta Glacier induce notable geomorphic changes during their surge events,including the formation of ring-shaped moraines and terminal advances.Comparative analysis with previous studies reveals that the surge characteristics of most Musta Glacier tributaries resemble those of thermally controlled Svalbard-type surging glaciers.Furthermore,we observed that the surging patterns of Musta Glacier are closely linked to regional climatic variations,characterized by increased precipitation and noticeably cooling prior to surge initiation.On the other hand,we proposed that the asynchronous surging behavior among the tributaries of Musta Glacier is primarily driven by variations in the internal dynamic processes of each glacier in response to climatic changes.In c

关 键 词：Glacier surge Climate change Musta Glacier KARAKORAM Remote sensing 

分 类 号：P343.6[天文地球—水文科学]