An East Asian Monsoon in the Mid-Pliocene  

作　　者：YAN Qing ZHANG Zhong-Shi GAO Yong-Qi 

机构地区：[1]Nansen-Zhu International Research Centre, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China [2]Graduate University of Chinese Academy of Sciences, Beijing 100049, China [3]Bjerknes Centre for Climate Research, UniResearch, Bergen 5007, Norway [4]Nansen Environmental and Remote Sensing Center, Bergen 5006, Norway

出　　处：《Atmospheric and Oceanic Science Letters》2012年第6期449-454,共6页大气和海洋科学快报（英文版）

基　　金：supported by the National Basic Research Program of China(2009CB421406);the Knowledge Innovation Program of the Chinese Academy of Sciences(KZCX2-YW-Q1-02);the National Natural Science Foundation of China(4090205 and 40975050)

摘　　要：In this study, the authors simulate the East Asian climate changes in the mid-Pliocene (～3.3 to 3.0 Ma BP) with the Community Atmosphere Model version 3.1 (CAM3.1) and compare the simulated East Asian monsoon with paleoclimate data. The simulations show an obvious warming pattern in East Asia in the mid-Pliocene compared with the pre-industrial climate, with surface air temperature increasing by 0.5 4.0°C. In the warm mid-Pliocene simulation, the East Asian Summer Monsoon (EASM) becomes stronger, while the East Asian Winter Monsoon (EAWM) is similar relative to the pre-industrial climate. Compared with the paleoclimate data, our simulations depict the intensified EASM well but cannot reproduce the weakened EAWM. This model-data discrepancy may be attributed to the uncertainty in the reconstructed mid-Pliocene sea surface temperature.In this study, the authors simulate the East Asian climate changes in the mid-Pliocene （～3.3 to 3.0 Ma BP） with the Community Atmosphere Model version 3.1 （CAM3.1） and compare the simulated East Asian monsoon with paleoclimate data. The simulations show an obvious warming pattern in East Asia in the mid-Pliocene compared with the pre-industrial climate, with surface air temperature increasing by 0.5 4.0°C. In the warm mid-Pliocene simulation, the East Asian Summer Monsoon （EASM） becomes stronger, while the East Asian Winter Monsoon （EAWM） is similar relative to the pre-industrial climate. Compared with the paleoclimate data, our simulations depict the intensified EASM well but cannot reproduce the weakened EAWM. This model-data discrepancy may be attributed to the uncertainty in the reconstructed mid-Pliocene sea surface temperature.

关 键 词：East Asian monsoon mid-Pliocene warm period paleoclimate data 

分 类 号：P425.42[天文地球—大气科学及气象学] P534.622