A modified monthly degree-day model for evaluating glacier runoff changes in China. Part II: application

doi:10.1002/hyp.8291

	A modified monthly degree-day model for evaluating glacier runoff changes in China. Part II: application
	Zhang, Shiqiang ; Gao, Xin; Ye, Baisheng ; Zhang, Xiaowen ; Hagemann, Stefan
	2012-05-30
发表期刊	HYDROLOGICAL PROCESSES
卷号	26 期号:11 页码:1697-1706
摘要	The glacier mass balance, area change, and glacier runoff in the Yarkant River Basin (YRB) and the Beida River Basin (BRB) were estimated from 1961 to 2006 by employing a modified monthly degree-day model. Comparisons between the simulated and observed mass balance, equilibrium line altitude, and glacier runoff suggest that the model can be used to analyze the long-term changes of glacier mass balance and runoff in the YRB and the BRB. The glacier mass balances of the YRB and the BYB both have a significantly decreasing trend with -4.39?mm a-1 and -8.15?mm a-1 from 1961 to 2006 because of a significant increase in ablation caused by increasing summer air temperatures, especially since 1996. The total runoff in glacier areas has a significant increasing trend with 0.23 x 108?m3 a-1 and 0.02 x 108?m3 a-1 in the YRB and the BRB, respectively. By comparing the mean mass balance during the period 1961 to 1986 with that of the 1987 to 2006, the BRB glacier mass balance's sensitivity to temperature is at 0.33?m a-1?degrees C, nearly twice as much as that of the YRB at 0.16?m a-1?degrees C. The difference between the glacier temperature sensitivity in the YRB and the BRB is primarily because the glacier elevation band area weighted altitude of the YRB is about 700?m higher than that of BRB. The glacier elevation band area weighted summer air temperature in the YRB is around 2?degrees C lower than that of the BRB. Therefore, the annual positive degree-day of the YRB and the BRB increases by about 21.0?degrees C and 77.3?degrees C respectively when the summer air temperature increases by 1?degrees C, resulting into more glacier ablation and runoff in the BRB than in the YRB. Copyright (c) 2011 John Wiley & Sons, Ltd.
关键词	monthly degree-day model mass balance glacier runoff change Yarkant River Basin Beida River Basin
DOI	10.1002/hyp.8291
收录类别	SCI ; EI ; SCOPUS ; SCIE
ISSN	0885-6087
语种	英语
WOS研究方向	Water Resources
WOS类目	Water Resources
WOS记录号	WOS:000304350100010
出版者	WILEY-BLACKWELL
EI入藏号	20122115056949
EI主题词	Runoff
原始文献类型	Journal article (JA)
EISSN	1099-1085
引用统计	被引频次：25[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.lzufe.edu.cn/handle/39EH0E1M/14358
专题	工商管理学院
作者单位	1.Chinese Acad Sci, CAREERI, State Key Lab Cryospher Sci, Qilian Shan Stn Glaciol & Ecol Environm, Lanzhou 730000, Gansu, Peoples R China; 2.Lanzhou Univ Finance & Econ, Resource Environm & Urban & Rural Planning Dept, Lanzhou 730020, Peoples R China; 3.Max Planck Inst Meteorol, D-20146 Hamburg, Germany
推荐引用方式 GB/T 7714	Zhang, Shiqiang,Gao, Xin,Ye, Baisheng,et al. A modified monthly degree-day model for evaluating glacier runoff changes in China. Part II: application[J]. HYDROLOGICAL PROCESSES,2012,26(11):1697-1706.
APA	Zhang, Shiqiang,Gao, Xin,Ye, Baisheng,Zhang, Xiaowen,&Hagemann, Stefan.(2012).A modified monthly degree-day model for evaluating glacier runoff changes in China. Part II: application.HYDROLOGICAL PROCESSES,26(11),1697-1706.
MLA	Zhang, Shiqiang,et al."A modified monthly degree-day model for evaluating glacier runoff changes in China. Part II: application".HYDROLOGICAL PROCESSES 26.11(2012):1697-1706.

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