Thickness estimation of the Longbasaba Glacier:methods and application

GuangLi He; JunFeng Wei; Xin Wang

首页> 中文期刊> 《寒旱区科学（英文版）》 >Thickness estimation of the Longbasaba Glacier:methods and application

Thickness estimation of the Longbasaba Glacier:methods and application

开具论文收录证明 >>

期刊封面封底目录下载 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

A total of 71,177 glaciers exist on the Qinghai-Tibet Plateau,according to the Randolph Glacier Inventory(RGI 6.0).Despite their large number,glacier ice thickness data are relatively scarce.This study utilizes digital elevation model data and ground-penetrating radar thickness measurements to estimate the distribution and variation of ice thickness of the Longbasaba Glacier using Glacier bed Topography(GlabTop),a full-width expansion model,and the Huss and Farinotti(HF)model.Results show that the average absolute deviations of GlabTop,the full-width expansion model,and the HF model are 9.8,15.5,and 10.9 m,respectively,indicating that GlabTop performs the best in simulating glacier thickness distribution.During 1980−2015,the Longbasaba Glacier thinned by an average of 7.9±1.3 m or 0.23±0.04 m/a,and its ice volume shrunk by 0.28±0.04 km3 with an average reduction rate of 0.0081±0.0001 km^3/a.In the investigation period,the area and volume of Longbasaba Lake expanded at rates of 0.12±0.01 km^2/a and 0.0132±0.0018 km3/a,respectively.This proglacial lake could potentially extend up to 5,000 m from the lake dam.

著录项

来源
《寒旱区科学（英文版）》 |2020年第6期|477-490|共14页
作者
GuangLi He; JunFeng Wei; Xin Wang;
展开▼
作者单位

School of Resource Environment and Safety Engineering Hunan University of Science and Technology Xiangtan Hunan 411100 China;

School of Resource Environment and Safety Engineering Hunan University of Science and Technology Xiangtan Hunan 411100 China;

School of Resource Environment and Safety Engineering Hunan University of Science and Technology Xiangtan Hunan 411100 China;

State Key Laboratory of Cryospheric Science Northwest Institute of Ecology and Environmental Resources Chinese Academy of Sciences Lanzhou Gansu 730000 China;

展开▼
原文格式 PDF
正文语种 eng
中图分类
关键词

Thickness estimation of the Longbasaba Glacier:methods and application

摘要

著录项

相关主题

期刊订阅