DOI: 10.1016/j.gloplacha.2013.09.011
论文题名: Glacier and glacial lake changes and their relationship in the context of climate change, Central Tibetan Plateau 1972-2010
作者: Wang X. ; Siegert F. ; Zhou A.-G. ; Franke J.
刊名: Global and Planetary Change
ISSN: 0921-8199
出版年: 2013
卷: 111 起始页码: 246
结束页码: 257
语种: 英语
英文关键词: Central Tibet Plateau
; Climate change
; Glacier
; Lakes
; Remote sensing
Scopus关键词: Annual precipitation
; Central Tibetan plateau
; Increased temperature
; Mean annual temperatures
; Remote sensing data
; Spatio-temporal changes
; Tibet Plateau
; Visual interpretation
; Climate change
; Ecosystems
; Glaciers
; Image classification
; Remote sensing
; Water levels
; Lakes
; altitude
; climate change
; climate effect
; correlation
; data acquisition
; GIS
; glacial hydrology
; glacial lake
; melting
; precipitation (climatology)
; remote sensing
; saline lake
; valley glacier
; China
; Qinghai-Xizang Plateau
英文摘要: The alpine ecosystem of the Western Nyainqentanglha region, located in the Central Tibetan Plateau, has experienced a lot of changes in the context of climatic change. The long data record of remote sensing data allowed us to evaluate spatio-temporal change in this remote area. The ecosystem changes of the Western Nyainqentanglha region were detected by using Landast MSS/TM/ETM+, Hexagon KH-9, Glas/ICESat, SRTM3 DEM remote sensing data and GIS techniques. The area of glacier lakes was delineated by visual interpretation, while for the inland lake by image classification. The change of glacier thickness was obtained by Glas/ICESat data of 2004 and 2008. Results show high variation in extent of glaciers and lakes with increased temperature and precipitation in the past 40years. These variations include glacial retreat, increased water level of inland lakes and increased number of glacier lakes to higher altitudes. Glaciers lost 22% of its coverage from 1977 to 2010, and the annual shrinkage rate accelerated in the last decade compared with the previous time period of 1977-2001. In average, the thickness of the monitored glaciers reduced by 4.48m from 2004 to 2008 with an annual rate of 1.12m. From 1972 to 2009, the number of new formed glacier lakes increased by 150 and the area of glacier lakes increased by 173% (4.53km2). At the same time, the surface area of the largest salt lake in Tibet expanded by 4.13% (80.18km2). These variations appear to be associated with an increase in mean annual temperature of 0.05°C per year, and an increase in annual precipitation of 1.83mm per year in the last four decades. By analyzing the relationship between the decreased glacier area and the increased number and extent of lakes in the vertical zones over the past 40years, there is a high correlation of 0.81. These results indicate that the climate change has great impacts on glaciers and glacier lakes on the central Tibetan Plateau. Further detailed investigations are required to understand the contribution of melting water and precipitation to the water cycle and the complicated hydrological relationship between the characteristics of glaciers and glacier lakes and climate warming in this alpine region. © 2013 Elsevier B.V. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84886314853&doi=10.1016%2fj.gloplacha.2013.09.011&partnerID=40&md5=68b3cacf1bccacf28545ed97d852ec17
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/11105
Appears in Collections: 全球变化的国际研究计划
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作者单位: School of Environmental Studies, China University of Geosciences, 388 Lumo Road, Wuhan 430074, China
Recommended Citation:
Wang X.,Siegert F.,Zhou A.-G.,et al. Glacier and glacial lake changes and their relationship in the context of climate change, Central Tibetan Plateau 1972-2010[J]. Global and Planetary Change,2013-01-01,111.