Glacier status during the period 1973-2014 in the Hunza Basin, Western Karakoram

doi:10.1016/j.quaint.2016.08.029

	Glacier status during the period 1973-2014 in the Hunza Basin, Western Karakoram
	Qureshi, MA (Qureshi, Muhammad Ateeq)1,2; Yi, CL (Yi, Chaolu)1,3; Xu, XK (Xu, Xiangke)1; Li, YK (Li, Yingkui)4; Yi, CL
刊名	QUATERNARY INTERNATIONAL
	2017
卷号	444 期号:0 页码:125-136
关键词	Icesat Altimetry Data Upper Indus Basin Tibetan Plateau Himalayan Glaciers River-basin Pakistan Mountain
DOI	10.1016/j.quaint.2016.08.029
文献子类	Article
英文摘要	Glacier changes in the Karakoram have shown a complex pattern since the recent decades with the coexistence of advancing, retreating, and stable glaciers, but the mechanisms driving these changes remain, for the most part, unclear. We examined the changes in glacier length, area, and elevation in the Hunza Basin of the upper Indus River region, western Karakoram, using CORONA remote sensing data, Landsat MSS/TM/OLI imagery, SRTM digital elevation model (DEM), and GLAS/ICESat altimeter data. We delineated 108 glaciers within the study area. The total area of these glaciers decreased 28.86 km(2), or 1.36%, from 2115.48 km(2) in 1973-2086.62 km(2) in 2014. The most significant reduction in ice coverage occurred between 1992 and 1998, when glaciers retreated on average at a rate of -2.97 km(2)/yr (0.85% of the total coverage measured in the 1970s). In contrast, many glaciers advanced from 2008 to 2014 and glacial coverage increased by 0.19 +/- 0.00 km(2). In comparison to fast retreating glaciers in the Hindukush and the Trans-Himalayan regions, the glaciers in the Hunza Basin are relatively stable. The topographical characteristics and the size of the glaciers have direct impacts on glacial changes in the Hunza Basin. Specifically, significant changes occurred mainly below 5500 m above sea level, glaciers retreated more extensively on steep slopes than on gentle slopes, and small glaciers retreated relatively faster than large glaciers. The overall pattern of glacial retreat is related to the warming trend in summer temperature, whereas the relative stability of glaciers in the Hunza Basin, as well as their recent advance (2008-2014), is likely driven by increasing autumn and winter precipitation. (C) 2016 Elsevier Ltd and INQUA. All rights reserved.
学科主题	自然地理学
WOS研究方向	Physical Geography; Geology
语种	英语
WOS记录号	WOS:000406754700012
内容类型	期刊论文
源URL	[http://ir.itpcas.ac.cn/handle/131C11/8029]
专题	青藏高原研究所_图书馆
通讯作者	Yi, CL
作者单位	1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China. 2.Pakistan Space & Upper Atmosphere Res Commiss SUP, Suparco Rd,POB 8402, Karachi 75270, Pakistan. 3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China. 4.Univ Tennessee, Dept Geog, Knoxville, TN 37996 USA.
推荐引用方式 GB/T 7714	Qureshi, MA ,Yi, CL ,Xu, XK ,et al. Glacier status during the period 1973-2014 in the Hunza Basin, Western Karakoram[J]. QUATERNARY INTERNATIONAL,2017,444(0):125-136.
APA	Qureshi, MA ,Yi, CL ,Xu, XK ,Li, YK ,&Yi, CL.(2017).Glacier status during the period 1973-2014 in the Hunza Basin, Western Karakoram.QUATERNARY INTERNATIONAL,444(0),125-136.
MLA	Qureshi, MA ,et al."Glacier status during the period 1973-2014 in the Hunza Basin, Western Karakoram".QUATERNARY INTERNATIONAL 444.0(2017):125-136.