气候变化领域集成服务门户(CCPortal): Effect of reducing the topographical altitude of the Tibetan Plateau on a severe winter drought in eastern China as determined using RAMS

CCPortal

DOI	10.1007/s00704-016-1817-7
	Effect of reducing the topographical altitude of the Tibetan Plateau on a severe winter drought in eastern China as determined using RAMS
	Meng, Chunchun; Ma, Yaoming; Han, Cunbo; Gou, Peng
通讯作者	Meng, CC (通讯作者)
发表日期	2017
ISSN	0177-798X
EISSN	1434-4483
起始页码	891
结束页码	900
卷号	129 期号:3-4
英文摘要	Regional Atmospheric Modeling System (RAMS) was applied to the study of the effect of the topographical altitude of the Tibetan Plateau (TP) on a severe drought event which took place in eastern China from November 2008 to January 2009. Two simulations of this drought event were conducted: a control simulation (CNTRL run) using original model settings and a sensitive simulation (TOPO run), where no change other than to reduce the TP topography by 50 %. The results show that the CNTRL simulation validates RAMS by reproducing this drought event fairly accurately. However, as part of the TOPO simulation, the total heat flux showed a decrease over most parts of the TP, latent heat flux underwent a significant increase over the southeastern TP, contrary to sensible heat, and a universal decrease over eastern China; this led to an increase in precipitation over the southeastern TP and a decrease in precipitation over eastern China. The decrease of total heat flux over the TP is collocated with an anomalous anticyclonic circulation from the TP to the coasts of southeastern China. Changes in atmospheric circulation and low-level water vapor transport pathways were consistent with changes in precipitation. In general, reducing the topographical altitude of the TP worsens drought in eastern China and moreover causes a significant decrease in precipitation over southern China.
关键词	ATMOSPHERIC HEAT SOURCE/SINK MODELING SYSTEM MONSOON PRECIPITATION NUCLEATION NORTHERN IMPACTS STORM
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000406123400012
来源期刊	THEORETICAL AND APPLIED CLIMATOLOGY
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/258897
推荐引用方式 GB/T 7714	Meng, Chunchun,Ma, Yaoming,Han, Cunbo,et al. Effect of reducing the topographical altitude of the Tibetan Plateau on a severe winter drought in eastern China as determined using RAMS[J]. 中国科学院青藏高原研究所,2017,129(3-4).
APA	Meng, Chunchun,Ma, Yaoming,Han, Cunbo,&Gou, Peng.(2017).Effect of reducing the topographical altitude of the Tibetan Plateau on a severe winter drought in eastern China as determined using RAMS.THEORETICAL AND APPLIED CLIMATOLOGY,129(3-4).
MLA	Meng, Chunchun,et al."Effect of reducing the topographical altitude of the Tibetan Plateau on a severe winter drought in eastern China as determined using RAMS".THEORETICAL AND APPLIED CLIMATOLOGY 129.3-4(2017).