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hbqouc木虫 (知名作家)
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【求助】science文章一篇
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http://www.sciencemag.org/cgi/content/abstract/308/5723/854 Science 6 May 2005: Vol. 308. no. 5723, pp. 854 - 857 DOI: 10.1126/science.1106296 Prev | Table of Contents | Next Reports The Holocene Asian Monsoon: Links to Solar Changes and North Atlantic Climate Yongjin Wang,1 Hai Cheng,1,2* R. Lawrence Edwards,2 Yaoqi He,1 Xinggong Kong,1 Zhisheng An,3 Jiangying Wu,1 Megan J. Kelly,2 Carolyn A. Dykoski,2 Xiangdong Li4 A 5-year-resolution absolute-dated oxygen isotope record from Dongge Cave, southern China, provides a continuous history of the Asian monsoon over the past 9000 years. Although the record broadly follows summer insolation, it is punctuated by eight weak monsoon events lasting 1 to 5 centuries. One correlates with the "8200-year" event, another with the collapse of the Chinese Neolithic culture, and most with North Atlantic ice-rafting events. Cross-correlation of the decadal- to centennial-scale monsoon record with the atmospheric carbon-14 record shows that some, but not all, of the monsoon variability at these frequencies results from changes in solar output. 1 College of Geography Science, Nanjing Normal University, Nanjing 210097, China. 2 Department of Geology and Geophysics, University of Minnesota, MN 55455, USA. 3 State Key Lab of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 71005, China. 4 Department of Civil and Structural Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong. * To whom correspondence should be addressed. E-mail: cheng021@umn.edu 我的email地址是：bangqihu@gmail.com 歇歇 |
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2楼2009-03-18 18:15:50
hbqouc
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3楼2009-03-18 21:13:29
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