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	Simulation of the Decadal Permafrost Distribution on the Qinghai-Tibet Plateau (China) over the Past 50 Years
	Cheng W. M. ; Zhao S. M. ; Zhou C. H. ; Chen X.
	2012
关键词	permafrost distribution Qinghai-Tibet Plateau response model altitudinal model mean annual air temperature vertical lapse rate of temperature cryospheric change model interpolation degradation canada yukon
英文摘要	Decadal changes in permafrost distribution on the Qinghai-Tibet Plateau (QTP) over the past 50?years (19602009) were simulated with a response model that uses data from a digital elevation model, mean annual air temperature (MAAT) and the vertical lapse rate of temperature. Compared with published maps of permafrost distribution, the accuracy of the simulated results is about 85 per cent. The simulation results show: (1) with the continuously rising MAAT over the past 50?years, the simulated areas of permafrost on the QTP have continuously decreased; (2) through areal statistics, the simulated areas of permafrost were 1.60?x?106?km2, 1.49?x?106?km2, 1.45?x?106?km2, 1.36?x?106?km2 and 1.27?x?106?km2, respectively, in the 1960s, 1970s, 1980s, 1990s and 2000s; and (3) the rate of permafrost loss has accelerated since the 1980s, and the total area of degraded permafrost is about 3.3?x?105?km2, which accounts for about one-fifth of the total area of permafrost in the 1960s. Copyright (c) 2012 John Wiley & Sons, Ltd.
出处	Permafrost and Periglacial Processes
卷	23
期	4
页	292-300
收录类别	SCI
语种	英语
ISSN号	1045-6740
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/30903]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Cheng W. M.,Zhao S. M.,Zhou C. H.,et al. Simulation of the Decadal Permafrost Distribution on the Qinghai-Tibet Plateau (China) over the Past 50 Years. 2012.

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