气候变化领域集成服务门户(CCPortal): Intriguing aspects of rainfall initiation over rainshadow region during boreal summer monsoon

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DOI	10.1016/j.atmosres.2021.105746
	Intriguing aspects of rainfall initiation over rainshadow region during boreal summer monsoon
	Mohan T.S.; Kumar K.N.; Madhulatha A.; Rajeevan M.
发表日期	2021
ISSN	0169-8095
卷号	261
英文摘要	This novel study explains a plausible physical mechanism for rainfall initiation over the southeast peninsular India (SEPI, referred to be a ‘rain shadow’ region) during the southwest monsoon season. Further, the contrasting rainfall patterns between the rain shadow region and central India (CI) are also elucidated through the response of the maritime continent (MC) convection. MC is found to be a prominent source for the initiation of wet spells over the rain shadow region (during which CI is in dry phase), with the rainfall anomalies over MC leads SEPI by ~5–7 days. Evolution of convective anomalies resembles a classical Gill-type response, with a pair of Rossby waves on the poleward side of the convection center and Kelvin waves on the eastern side. Thus, the combined effect of large-scale circulation and moisture anomalies over MC contributes to the preconditioning and subsequent positive rainfall anomalies over the rain shadow region. © 2021 Elsevier B.V.
英文关键词	Maritime continent; Monsoon; Rainshadow region; Rossby waves; Southeast India; Wet spells
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/236636
作者单位	National Centre for Medium Range Weather Forecasting, Ministry of Earth Sciences, India; Ministry of Earth Sciences, New Delhi, India; Korean Institute of Atmospheric Prediction System, Seoul, South Korea; India Meteorological Department, Ministry of Earth Sciences, India
推荐引用方式 GB/T 7714	Mohan T.S.,Kumar K.N.,Madhulatha A.,et al. Intriguing aspects of rainfall initiation over rainshadow region during boreal summer monsoon[J],2021,261.
APA	Mohan T.S.,Kumar K.N.,Madhulatha A.,&Rajeevan M..(2021).Intriguing aspects of rainfall initiation over rainshadow region during boreal summer monsoon.Atmospheric Research,261.
MLA	Mohan T.S.,et al."Intriguing aspects of rainfall initiation over rainshadow region during boreal summer monsoon".Atmospheric Research 261(2021).