DOI: 10.1007/s00382-012-1457-2
Scopus记录号: 2-s2.0-84875757449
论文题名: Regional climate simulations of summer diurnal rainfall variations over East Asia and Southeast China
作者: Huang W.-R. ; Chan J.C.L. ; Au-Yeung A.Y.M.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2013
卷: 40, 期: 2017-07-08 起始页码: 1625
结束页码: 1642
语种: 英语
英文关键词: Cumulus schemes
; Diurnal variation
; Precipitation
; Regional climate model
英文摘要: This study evaluates the performance of RegCM3 (Regional Climate Model Version 3) in simulating the East Asian rainfall, with emphasis on the diurnal variations of rainfall over Southeast China during the 1998-2002 summer (June-August) seasons. The evaluation focuses on the sensitivity of the choice of cumulus parameterizations and model domain. With the right setup, the spatial and temporal evolution of diurnal rainfall over Southeast China, which has not been well simulated by past studies, can be accurately simulated by RegCM3. Results show that the Emanuel cumulus scheme has a more realistic simulation of summer mean rainfall in East Asia, while the GFC (Grell scheme with the Frisch-Chappell convective closure assumption) scheme is better in simulating the diurnal variations of rainfall over Southeast China. The better performance of these two schemes [relative to the other two schemes in RegCM3: the Kuo scheme and the GAS (Grell scheme with the Arakawa-Schubert closure assumption) scheme] can be attributed to the reasonable reproduction of the major formation mechanism of rainfall-the moisture flux convergence-over Southeast China. Furthermore, when the simulation domain covers the entire Tibetan Plateau, the diurnal variations of rainfall over Southeast China are found to exhibit a noticeable improvement without changes in the physics schemes. © 2012 Springer-Verlag. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/55009
Appears in Collections: 过去全球变化的重建
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作者单位: Guy Carpenter Asia-Pacific Climate Impact Centre, School of Energy and Environment, City University of Hong Kong, Hong Kong, China; Department of Earth Sciences, National Taiwan Normal University, No. 88, Sec. 4, Tingzhou Rd., Wenshan District, Taipei, 11677 Taiwan, Taiwan
Recommended Citation:
Huang W.-R.,Chan J.C.L.,Au-Yeung A.Y.M.. Regional climate simulations of summer diurnal rainfall variations over East Asia and Southeast China[J]. Climate Dynamics,2013-01-01,40(2017-07-08)