干旱区地理2025，Vol.48Issue(10)：1760-1770,11.DOI:10.12118/j.issn.1000-6060.2024.776
木孜塔格峰地区冰川反照率时空变化及其影响因素研究
Spatio-temporal variation of glacial albedo and its influencing factors in the Muz Tag Peak area
摘要
Abstract
Glacier albedo is a key factor influencing the rate of glacier melting and associated environmental changes.In this study,Landsat OLI images with high spatial resolution and MOD10A1 albedo products with high temporal resolution were used to analyze the spatiotemporal variations of glacier albedo and its influencing fac-tors in the Muz Tag Peak area,Xinjiang,China from 2015 to 2020.The results show that:(1)The albedo values derived from Landsat OLI and MOD10A1 are highly consistent,with a strong correlation(R2=0.92).(2)Seasonal-ly,the lowest albedo occurs in summer,while higher values are observed in early autumn.In winter and spring,reduced snowfall and densification of surface snow lead to decreasing albedo.(3)Spatially,glacier surface albedo increases with elevation,following an exponential relationship(R2=0.23 in the ablation area and 0.25 in the accu-mulation area).(4)Air temperature and precipitation are the primary factors affecting glacier albedo,as higher temperatures and reduced snowfall result in lower albedo.Topography also exerts a significant effect,with gen-tler slopes exhibiting lower albedo and steeper slopes showing higher albedo.This study provides a scientific ba-sis for understanding glacier change mechanisms in the Muz Tag Peak area and for predicting future climate change.关键词
冰川反照率/时空变化/Landsat OLI/MOD10A1/木孜塔格冰川Key words
glacial albedo/spatio-temporal variation/Landsat OLI/MOD10A1/Muz Tag Glacier引用本文复制引用
张玉娇,怀保娟,王圣杰,车彦军,张明军..木孜塔格峰地区冰川反照率时空变化及其影响因素研究[J].干旱区地理,2025,48(10):1760-1770,11.基金项目
国家科技基础资源调查专项(2021xjkk0101) （2021xjkk0101）
国家自然科学基金项目(42261008) （42261008）
甘肃省基础研究创新群体项目(22JR5RA129)资助 （22JR5RA129）
