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[交流] 【求助】science文章一篇

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

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