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	Comparative analysis between a proxy-based climate reconstruction and GCM-based simulation of temperatures over the last millennium in China
	Tan M. ; Shao X. M. ; Liu J. ; Cai B. G.
	2009
关键词	comparative analysis millennial temperature proxy reconstruction ECHO-G simulation stalagmite tree ring China northern-hemisphere temperatures chronologies variability middle record warm
英文摘要	The application of general circulation models (GCMs) could improve our understanding of climate forcing. Furthermore, longer climate records spanning a wider range of climate states could hell) in assessing the skill of the models for simulating climates different from the present. We first attempt to find a way to combine proxy records which are affected by different seasonal temperatures, and then present a large-scale temperature reconstruction over the last millennium for China by combining the Beijing stalagmite layer series and the Qilian tree ring sequence to compare with the GCM-based ECHO-G simulated millennial temperature record for China. The correlation coefficient between the Simulated and the reconstructed temperature records is 0.61 based on a 31-year running mean (exceeding P<0.01). An asymmetrical V-like low-frequency variation shown both by the combined proxy record and the simulated series is the major long-term pattern in the last millennial temperature it) China, Suggesting that solar irradiance as well as greenhouse gases could explain Much of the low-frequency variations in the climate. However, there still exist high-frequency discrepancies between the two time series, which may be Clue to (1) the overestimated climatic effect of volcanoes within the GCM and/or (2) proxies which are not sensitive enough to respond to the volcanic eruptions. Copyright (C) 2009 John Wiley & Sons, Ltd. Supporting information may be found in the online version of this article.
出处	Journal of Quaternary Science
卷	24
期	5
页	547-551
收录类别	SCI
语种	英语
ISSN号	0267-8179
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/23015]
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	Tan M.,Shao X. M.,Liu J.,et al. Comparative analysis between a proxy-based climate reconstruction and GCM-based simulation of temperatures over the last millennium in China. 2009.

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