Strengthening of the East Asian winter monsoon during the mid-Holocene

被引：11
|
作者：
Tian, Zhiping [1 ]
Jiang, Dabang [1 ,2 ,3 ,4 ]
机构：
[1] Chinese Acad Sci, Inst Atmospher Phys, Beijing 100029, Peoples R China
[2] CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China
[3] Nanjing Univ Informat Sci Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing, Jiangsu, Peoples R China
[4] Chengdu Univ Informat Technol, Joint Lab Climate & Environm Change, Chengdu, Sichuan, Peoples R China
来源：
HOLOCENE | 2018年 / 28卷 / 09期
基金：
国家重点研发计划; 中国国家自然科学基金;
关键词：
East Asian winter monsoon; mid-Holocene; PMIP; reconstructions; simulations; uncertainty; LAST GLACIAL MAXIMUM; CHINESE LOESS PLATEAU; MU US DESERT; PMIP SIMULATIONS; SUMMER MONSOON; VEGETATION FEEDBACKS; HOLOCENE VEGETATION; ARCTIC-OSCILLATION; TIBETAN PLATEAU; INNER SHELF;
D O I：
10.1177/0959683618777076
中图分类号：
P9 [自然地理学];
学科分类号：
0705 ; 070501 ;
摘要：
The change in the East Asian winter (December-January-February) monsoon (EAWM) during the mid-Holocene, approximately 6000 years ago, was investigated using all available experiments within the Paleoclimate Modelling Intercomparison Project (PMIP). As defined by regional-averaged meridional wind speed at 850 hPa, the mid-Holocene EAWM intensity was consistently stronger than that of the reference period in 38 out of the 42 models chosen for analysis, with an average strengthening of 14% across all models. In response to changes in the Earth's orbital parameters and atmospheric greenhouse gas concentrations, zonal and meridional land-sea thermal contrasts and sea-level pressure gradients were enhanced between the continent and the adjacent oceans of East Asia, leading to the strengthening of the mid-Holocene EAWM. In addition, there were uncertainties regarding the EAWM reconstructions and the effect of dynamic ocean and vegetation on the EAWM change during the mid-Holocene.
引用
收藏
页码：1443 / 1451
页数：9
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