气候变化领域集成服务门户(CCPortal): The influence of mechanical and thermal forcing by the Tibetan Plateau on Asian climate

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DOI	10.1175/JHM609.1
	The influence of mechanical and thermal forcing by the Tibetan Plateau on Asian climate
	Wu, Guoxiong; Liu, Yimin; Wang, Tongmei; Wan, Rijin; Liu, Xin; Li, Weiping; Wang, Zaizhi; Zhang, Qiong; Duan, Anmin; Liang, Xiaoyun
发表日期	2007
ISSN	1525-755X
EISSN	1525-7541
起始页码	770
结束页码	789
卷号	8 期号:4
英文摘要	This paper attempts to provide some new understanding of the mechanical as well as thermal effects of the Tibetan Plateau (TP) on the circulation and climate in Asia through diagnosis and numerical experiments. The air column over the TP descends in winter and ascends in summer and regulates the surface Asian monsoon flow. Sensible heating on the sloping lateral surfaces appears from the authors' experiments to be the major driving source. The retarding and deflecting effects of the TP in winter generate an asymmetric dipole zonal-deviation circulation, with a large anticyclone gyre to the north and a cyclonic gyre to the south. Such a dipole deviation circulation enhances the cold outbreaks from the north over East Asia, results in a dry climate in south Asia and a moist climate over the Indochina peninsula and south China, and forms the persistent rainfall in early spring (PRES) in south China. In summer the TP heating generates a cyclonic spiral zonal-deviation circulation in the lower troposphere, which converges toward and rises over the TP. It is shown that because the TP is located east of the Eurasian continent, in summertime the meridional winds and vertical motions forced by the Eurasian continental-scale heating and the TP local heating are in phase over the eastern and central parts of the continent. The monsoon in East Asia and the dry climate in middle Asia are therefore intensified.
关键词	LARGE-SCALE CIRCULATION BULK TRANSFER-COEFFICIENTS INFRARED COOLING PROFILE SPRING PERSISTENT RAINS SUMMER MONSOON HEAT-SOURCES INTERANNUAL VARIABILITY SUBTROPICAL ANTICYCLONE SURROUNDING AREAS MOISTURE BUDGETS
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000249354400011
来源期刊	JOURNAL OF HYDROMETEOROLOGY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257487
推荐引用方式 GB/T 7714	Wu, Guoxiong,Liu, Yimin,Wang, Tongmei,et al. The influence of mechanical and thermal forcing by the Tibetan Plateau on Asian climate[J]. 中国科学院青藏高原研究所,2007,8(4).
APA	Wu, Guoxiong.,Liu, Yimin.,Wang, Tongmei.,Wan, Rijin.,Liu, Xin.,...&Liang, Xiaoyun.(2007).The influence of mechanical and thermal forcing by the Tibetan Plateau on Asian climate.JOURNAL OF HYDROMETEOROLOGY,8(4).
MLA	Wu, Guoxiong,et al."The influence of mechanical and thermal forcing by the Tibetan Plateau on Asian climate".JOURNAL OF HYDROMETEOROLOGY 8.4(2007).