Quantifying glacier surging and associated lake dynamics in Amu Darya river basin using UAV and remote sensing data  

作　　者：SAFAROV Mustafo KANG Shichang MURODOV Murodkhudzha BANERJEE Abhishek NAVRUZSHOEV Hofiz GULAYOZOV Majid FAZYLOV Ali VOSIDOV Firdavs 

机构地区：[1]Key Laboratory of Cryospheric Science and Frozen Soil Engineering,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China [2]Research Center for Ecology and Environment of Central Asia(Dushanbe),Dushanbe 734063,Tajikistan [3]University of Chinese Academy of Sciences,Beijing 100049,China [4]Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,China [5]Mountain Societies Research Institute,University of Central Asia,Dushanbe 734000,Tajikistan [6]State Scientific Institution“Center for Research of Glaciers of the National Academy of Sciences of Tajikistan”,Dushanbe 734025,Tajikistan [7]Institute of Water Problems,Hydropower and Ecology of the National Academy of Sciences of Tajikistan,Dushanbe 734025,Tajikistan

出　　处：《Journal of Mountain Science》2024年第9期2967-2985,共19页山地科学学报（英文）

基　　金：funded by the Gansu Provincial Science and Technology Program(22ZD6FA005);Gansu Postdoctoral Science Foundation(Grant number-E339880204)。

摘　　要：Glaciers in the Pamir region are experiencing rapid melting and receding due to climate change,which has a significant implication for the Amu Darya river basin.Predominantly,surging glaciers,which undergo unpredictable advances,are potentially leading to the obstruction of high-altitude river channels and also glacial lake outburst floods.decrease of-703.5±30.0 m.There is a substantial increase in the number(from 19 to 75)and area(from 4889.7±0.6 m2 to 15345.5±0.6 m2)of RGS lakes along with supra-glacier ponds based on a comparison of ArcGIS base map in 2011 and high-resolution UAV data in 2023.For M glacier,number of lakes increased from 4 to 22 but the lake area declined from 10715.2±0.6 to 365.6±0.6 m2.It was noted that the largest lake in 2011 with an area of 10406.4±0.6 m2 at the southeastern portion of the glacier was not observed in 2023 due to outburst.Both the glaciers have substantially impacted the river flow(Abdukahor river)by obstructing a significant proportion of river channel in recent years and might cause outburst floods.These findings enhance the understanding of glacier dynamics and their impacts on the surrounding areas,emphasizing the urgent need for continued monitoring and appropriate management strategies,with a specific focus on surging glaciers and the associated risks.

关 键 词：UAV Remote sensing Climate change Glacier dynamics Google Earth Engine PAMIR 

分 类 号：P332[天文地球—水文科学] TP79[水利工程—水文学及水资源]