Variations in albedo on Dongkemadi Glacier in Tanggula Range on the Tibetan Plateau during 2002-2012 and its linkage with mass balance

	Variations in albedo on Dongkemadi Glacier in Tanggula Range on the Tibetan Plateau during 2002-2012 and its linkage with mass balance
	Wu, Xuejiao 1; Wang, Ninglian 1; Lu, Anxin 1; Pu, Jianchen 1; Guo, Zhongming 1; Zhang, Huawei 1
刊名	ARCTIC ANTARCTIC AND ALPINE RESEARCH
	2015
卷号	47 期号:2 页码:964-971
通讯作者	Wang, NL (reprint author), Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Cryospher Sci, 320 Donggang West Rd, Lanzhou 730000, Peoples R China.
英文摘要	Albedo, which impacts the surface heat budget of a glacier, is a dominant factor governing snow and ice melt variability. We analyzed variations in albedo on the Dongkemadi Glacier (92 degrees 4.94'E, 33 degrees 05.88'N) using MODIS daily snow albedo products. The results show that the summer albedo over the accumulation zone and the ablation zone all presented a decreasing trend from 2002 to 2012, and both precipitation and summer temperature were critical factors that impacted variations in the albedo of the glacier. We linked the albedo variation with the measured mass balance of the glacier and found that 2006 and 2010 were high-melt years at the Dongkemadi Glacier, with lower albedo and a more negative mass balance. The area around the equilibrium line altitude (ELA) on the glacier was very sensitive to albedo feedback. The albedo change rate reached approximately -34% when the summer average temperature increased about 1 degrees C and the summer precipitation declined 94.5 mm. We built a linear model between the annual lowest albedo and the annual mass balance of the Xiao Dongkemadi Glacier, one branch of the Dongkemadi Glacier. This model was used to evaluate the annual mass balance of another branch of the Dongkemadi Glacier, the Da Dongkemadi Glacier. The mass balance of the Da Dongkemadi Glacier was significantly negative in 2006 (-768.7 mm w.e.) and 2010 (-696.9 mm w.e.). This work indicates that the glacier surface annual lowest albedo may be a reasonable proxy for evaluating the inter-annual variability of the mass balance of the glacier.
研究领域[WOS]	Environmental Sciences ; Geography, Physical
收录类别	SCI
语种	英语
WOS记录号	WOS:000355627500009
内容类型	期刊论文
源URL	[http://ir.ceode.ac.cn/handle/183411/38443]
专题	遥感与数字地球研究所_SCI/EI期刊论文_期刊论文
作者单位	1.[Wu, Xuejiao 2.Wang, Ninglian 3.Pu, Jianchen 4.Guo, Zhongming] Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China 5.[Wu, Xuejiao 6.Guo, Zhongming] Univ Chinese Acad Sci, Beijing 100049, Peoples R China 7.[Lu, Anxin] Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Lab Digital Earth Sci, Beijing 100094, Peoples R China 8.[Zhang, Huawei] Yunnan Normal Univ, Sch Tourism & Geog Sci, Chenggong 650092, Kunming, Peoples R China 9.[Wang, Ninglian] Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Wu, Xuejiao,Wang, Ninglian,Lu, Anxin,et al. Variations in albedo on Dongkemadi Glacier in Tanggula Range on the Tibetan Plateau during 2002-2012 and its linkage with mass balance[J]. ARCTIC ANTARCTIC AND ALPINE RESEARCH,2015,47(2):964-971.
APA	Wu, Xuejiao,Wang, Ninglian,Lu, Anxin,Pu, Jianchen,Guo, Zhongming,&Zhang, Huawei.(2015).Variations in albedo on Dongkemadi Glacier in Tanggula Range on the Tibetan Plateau during 2002-2012 and its linkage with mass balance.ARCTIC ANTARCTIC AND ALPINE RESEARCH,47(2),964-971.
MLA	Wu, Xuejiao,et al."Variations in albedo on Dongkemadi Glacier in Tanggula Range on the Tibetan Plateau during 2002-2012 and its linkage with mass balance".ARCTIC ANTARCTIC AND ALPINE RESEARCH 47.2(2015):964-971.