气候变化领域集成服务门户(CCPortal): The response of lake-glacier variations to climate change in Nam Co Catchment, central Tibetan Plateau, during 1970-2000

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DOI	10.1007/s11442-008-0177-3
	The response of lake-glacier variations to climate change in Nam Co Catchment, central Tibetan Plateau, during 1970-2000
	Wu Yanhong; Zhu Liping
通讯作者	Zhu, LP (通讯作者)
发表日期	2008
ISSN	1009-637X
EISSN	1861-9568
起始页码	177
结束页码	189
卷号	18 期号:2
英文摘要	Based upon the 1970 aero-photo topographic map, and TM/ETM satellite images taken in 1991 and 2000, the authors artificially interpreted boundaries of lake and glaciers in Nam Co Catchment, and quantified lake-glacier area variations in different stages by integrated method with the support of GIS. Results show that from 1970 to 2000, lake area increased from 1942.34 km(2) to 1979.79 km(2) at a rate of 1.27 km(2)/a, while glacier area decreased from 167.62 km(2) to 141.88 km(2) at a rate of 0.86 km(2)/a. The increasing rate of lake in 1991-2000 was 1.76 km(2)/a that was faster than 1.03 km(2)/a in 1970-1991, while in the same period of time, the shrinking rates of glaciers were 0.97 km(2)/a and 0.80 km(2)/a respectively. Important factors, relevant to lake and glacier response to the climate, such as air temperature, precipitation, potential evapotranspiration and their values in warm and cold seasons, were discussed. The result suggests that temperature increasing is the main reason for the accelerated melting of glaciers. Lake expansion is mainly induced by the increase of the glacier melting water, increase of precipitation and obvious decrease of potential evapotranspiration. Precipitation, evaporation and their linkages with lake enlargement on regional scale need to be thoroughly studied under the background of global warming and glacier retreating.
关键词	HIMALAYA RETREAT
英文关键词	Tibetan Plateau; Nam Co Catchment; lake; glacier; remote sensing
语种	英语
WOS研究方向	Physical Geography
WOS类目	Geography, Physical
WOS记录号	WOS:000254970800005
来源期刊	JOURNAL OF GEOGRAPHICAL SCIENCES
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257556
推荐引用方式 GB/T 7714	Wu Yanhong,Zhu Liping. The response of lake-glacier variations to climate change in Nam Co Catchment, central Tibetan Plateau, during 1970-2000[J]. 中国科学院青藏高原研究所,2008,18(2).
APA	Wu Yanhong,&Zhu Liping.(2008).The response of lake-glacier variations to climate change in Nam Co Catchment, central Tibetan Plateau, during 1970-2000.JOURNAL OF GEOGRAPHICAL SCIENCES,18(2).
MLA	Wu Yanhong,et al."The response of lake-glacier variations to climate change in Nam Co Catchment, central Tibetan Plateau, during 1970-2000".JOURNAL OF GEOGRAPHICAL SCIENCES 18.2(2008).