气候变化领域集成服务门户(CCPortal): Monitoring lake level changes on the Tibetan Plateau using ICESat altimetry data (2003-2009)

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DOI	10.1016/j.rse.2011.03.005
	Monitoring lake level changes on the Tibetan Plateau using ICESat altimetry data (2003-2009)
	Zhang, Guoqing; Xie, Hongjie; Kang, Shichang; Yi, Donghui; Ackley, Stephen F.
发表日期	2011
ISSN	0034-4257
EISSN	1879-0704
卷号	115 期号:7
英文摘要	In this study. ICESat altimetry data are used to provide precise lake elevations of the Tibetan Plateau (IF) during the period of 2003-2009. Among the 261 lakes examined ICESat data are available on 111 lakes: 74 lakes with ICESat footprints for 4-7 years and 37 lakes with footprints for 1-3 years. This is the first time that precise lake elevation data are provided for the 111 lakes. Those ICESat elevation data can be used as baselines for future changes in lake levels as well as for changes during the 2003-2009 period. It is found that in the 74 lakes (56 salt lakes) examined, 62 (i.e. 84%) of all lakes and 50 (i.e. 89%) of the salt lakes show tendency of lake level increase. The mean lake water level increase rate is 0.23 m/year for the 56 salt lakes and 0.27 m/year for the 50 salt lakes of water level increase. The largest lake level increase rate (0.80 m/year) found in this study is the lake Cedo Caka. The 74 lakes are grouped into four subareas based on geographical locations and change tendencies in lake levels. Three of the four subareas show increased lake levels. The mean lake level change rates for subareas I, II, III, IV, and the entire TP are 0.12, 0.26, 0.19, -0.11, and 0.2 m/year, respectively. These recent increases in lake level, particularly for a high percentage of salt lakes, supports accelerated glacier melting due to global warming as the most likely cause. (C) 2011 Elsevier Inc. All rights reserved.
关键词	Tibetan Plateau Lake level ICESat Salt lake Glacier melting
学科领域	Environmental Sciences & Ecology; Remote Sensing; Imaging Science & Photographic Technology
语种	英语
WOS研究方向	Environmental Sciences ; Remote Sensing ; Imaging Science & Photographic Technology
来源期刊	REMOTE SENSING OF ENVIRONMENT
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111611
作者单位	Univ Texas San Antonio, Lab Remote Sensing & Geoinformat, San Antonio, TX 78249 USA
推荐引用方式 GB/T 7714	Zhang, Guoqing,Xie, Hongjie,Kang, Shichang,et al. Monitoring lake level changes on the Tibetan Plateau using ICESat altimetry data (2003-2009)[J]. 中国科学院西北生态环境资源研究院,2011,115(7).
APA	Zhang, Guoqing,Xie, Hongjie,Kang, Shichang,Yi, Donghui,&Ackley, Stephen F..(2011).Monitoring lake level changes on the Tibetan Plateau using ICESat altimetry data (2003-2009).REMOTE SENSING OF ENVIRONMENT,115(7).
MLA	Zhang, Guoqing,et al."Monitoring lake level changes on the Tibetan Plateau using ICESat altimetry data (2003-2009)".REMOTE SENSING OF ENVIRONMENT 115.7(2011).