气候变化领域集成服务门户(CCPortal): Monitoring glacier variations on Geladandong mountain, central Tibetan Plateau, from 1969 to 2002 using remote-sensing and GIS technologies

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DOI	10.3189/172756506781828359
	Monitoring glacier variations on Geladandong mountain, central Tibetan Plateau, from 1969 to 2002 using remote-sensing and GIS technologies
	Ye, Qinghua; Kang, Shichang; Chen, Feng; Wang, Jinghua
发表日期	2006
ISSN	0022-1430
EISSN	1727-5652
起始页码	537
结束页码	545
卷号	52 期号:179
英文摘要	Using Geographical Information System (GIS) and remote-sensing technologies, we describe quantitative measurements of glacier variations in the Geladandong mountain region of central Tibet. Data from Landsat images at three different times, 1973-76, 1992 and 2002, are compared with glacier areas digitized from a topographic map based on aerial photographs taken in 1969. We find that while some glaciers have advanced during the past 30 years, others have retreated. The area of retreat is much larger than that of advance. The total glacier area has decreased from 889 km(2) in 1969 to 847 km(2) in 2002, a reduction of almost 43 km(2) (i.e. 4.8% decrease, or an average of 1.29 km(2) a(-1)). The variation of glacier area in the Geladandong mountain region is not as large as in other regions within the Tibetan Plateau. Glacier areas decreased 4.7 km(2) (i.e. an average of 0.68 km(2) a(-1)) during 1969-76, 15.4 km(2) (0.96 km(2) a(-1)) during 1976-92, and 22.4 km(2) (2.24 km(2) a(-1)) during 1992-2002, suggesting accelerated glacier retreat in recent years. The recession rates of glacier termini also increased. It is likely that the increase in summer air temperature is the major reason for glacier shrinkage in the Geladandong mountain region.
关键词	CLIMATE-CHANGE NEW-ZEALAND ASTER DATA IMAGERY RETREAT FLUCTUATIONS DEFORMATION DECADES CHINA ASIA
学科领域	Physical Geography; Geology
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000244472100005
来源期刊	JOURNAL OF GLACIOLOGY
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/111451
推荐引用方式 GB/T 7714	Ye, Qinghua,Kang, Shichang,Chen, Feng,et al. Monitoring glacier variations on Geladandong mountain, central Tibetan Plateau, from 1969 to 2002 using remote-sensing and GIS technologies[J]. 中国科学院青藏高原研究所,2006,52(179).
APA	Ye, Qinghua,Kang, Shichang,Chen, Feng,&Wang, Jinghua.(2006).Monitoring glacier variations on Geladandong mountain, central Tibetan Plateau, from 1969 to 2002 using remote-sensing and GIS technologies.JOURNAL OF GLACIOLOGY,52(179).
MLA	Ye, Qinghua,et al."Monitoring glacier variations on Geladandong mountain, central Tibetan Plateau, from 1969 to 2002 using remote-sensing and GIS technologies".JOURNAL OF GLACIOLOGY 52.179(2006).