Possible solar forcing of climate va

Possible solar forcing of climate variability in the past 4000 years inferred from a proxy record at the southern margin

A ca. 4000a decadal-resolution climate proxy record of the mean grain-size from a lake (or mash) sediment at the southern margin of the Tarim Basin, correlates visually with the atmospheric 14C record from tree ring (residual △14C, solar proxy) and the GISP2 ice core δ18O record (temperature proxy). In general, △14C maxima (solar minima) are coincident with cold (wet) periods in the study area and cold periods in the Greenland ice core. Power spectrum analysis revealed statistically significant periodicities of 196a, 121a,97a, 62a, 45a and 33-30a, which are similar to those principal solar-oscillation periods as inferred from the atmospheric radiocarbon and other proxy records. Possible solar forcing is addressed to be the main driving forcing of climate change in the southern margin of Tarim Basin.

作 者： ZHONG Wei Wang Liguo Tyip·Tashpolat XIONG Heigang SHU Qiang   作者单位： ZHONG Wei(Department of Geography, South China Normal University, Guang zhou 510631, China)

Wang Liguo,Tyip·Tashpolat,XIONG Heigang,SHU Qiang(College of Resource and Environmental Science, Xinjiang University, Urumqi 830046, China) 

刊 名： 科学通报（英文版）  SCI 英文刊名： CHINESE SCIENCE BULLETIN  年，卷(期)： 2004 49(11)  分类号： P4  关键词： Tarim Basin   solar forcing   decadal- to centennial-scale   climate change  

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