气候变化领域集成服务门户(CCPortal): Probing for overshooting as extreme event of thunderstorms

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DOI	10.1007/s11069-020-03977-y
	Probing for overshooting as extreme event of thunderstorms
	Chaudhuri S.; Khan F.; Das D.; Mondal P.; Dey S.
发表日期	2020
ISSN	0921030X
起始页码	1571
结束页码	1588
卷号	102 期号:3
英文摘要	Thunderstorm overshooting is rare but not an unusual phenomenon in a metropolitan of India, Kolkata (22.57° N; 88.36° E) during the pre-monsoon months (April–May). An attempt is made in this study to identify the important parameters differentiating the thunderstorms in overshooting and non-overshooting categories through data analytics from 2000 to 2015. The present investigation on parametric classification would facilitate in estimating the predictability of thunderstorms with overshooting which subsequently might assist in operational forecast of thunderstorm severity over Kolkata. The altitudes of lifting condensation level (LCL), wind shear, bulk Richardson number (BRN), gust speed, boundary layer characteristics and their correlation with thunderstorm cloud top height (CTH) and also their variation and distribution during overshooting (OTS) and non-overshooting (TS) thunderstorms are analyzed in this study. The result depicts that over Kolkata the intensity of storms during OTS is higher than during TS though the frequency of OTS is less than that of TS. The results further show that the potential temperature (θ), equivalent potential temperature (θe), mixing ratio (es) in the boundary layer, convective available potential energy, convective inhibition energy, BRN and gust speed play significant roles in regulating the CTH during OTS and TS thunderstorms over Kolkata. © 2020, Springer Nature B.V.
关键词	Overshooting Predictability Severity Stability indices Thunderstorm
英文关键词	boundary layer; extreme event; gust; potential temperature; Richardson number; thunderstorm; wind shear; India; Kolkata; West Bengal
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/205626
作者单位	Department of Atmospheric Sciences, University of Calcutta, 51/2 Hazra Road, Kolkata, 700 019, India
推荐引用方式 GB/T 7714	Chaudhuri S.,Khan F.,Das D.,et al. Probing for overshooting as extreme event of thunderstorms[J],2020,102(3).
APA	Chaudhuri S.,Khan F.,Das D.,Mondal P.,&Dey S..(2020).Probing for overshooting as extreme event of thunderstorms.Natural Hazards,102(3).
MLA	Chaudhuri S.,et al."Probing for overshooting as extreme event of thunderstorms".Natural Hazards 102.3(2020).