气候变化领域集成服务门户(CCPortal): Tide-rainfall flood quotient: An incisive measure of comprehending a region's response to storm-tide and pluvial flooding

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DOI	10.1088/1748-9326/ab8092
	Tide-rainfall flood quotient: An incisive measure of comprehending a region's response to storm-tide and pluvial flooding
	Mohanty M.P.; Sherly M.A.; Ghosh S.; Karmakar S.
发表日期	2020
ISSN	17489318
卷号	15 期号:6
英文摘要	It is undeniable that coastal regions worldwide are facing unprecedented damages from catastrophic floods attributable to storm-tide (tidal) and extreme rainfall (pluvial). For flood-risk assessment, although recognizing compound impact of these drivers is a conventional practice, the marginal/individual impacts cannot be overlooked. In this letter, we propose a new measure, Tide-Rainfall Flood Quotient (TRFQ), to quantify the driver-specific flood potential of a coastal region arising from storm-tide or rainfall. A set of inundation and hazard maps are derived through a series of numerical and hydrodynamic flood model simulations comprising of design rainfall and design storm-tide. These experiments are demonstrated on three different geographically diverse flood-affected coastal regions in India. The new measure throws light on existing knowledge gaps on the propensity of coastal flooding induced by the marginal/individual contribution of storm-tide and rainfall. It shall prove useful in rationalizing long-term flood management strategies customizable for storm-tide and pluvial dominated global coastal regions. © 2020 The Author(s). Published by IOP Publishing Ltd.
英文关键词	coastal flooding; design rainfall; design storm-tide; flood hazard; tide-rainfall flood quotient
语种	英语
scopus关键词	Coastal zones; Flood control; Rain; Risk assessment; Storms; Catastrophic floods; Coastal flooding; Coastal regions; Design rainfalls; Extreme rainfall; Flood management; Flood risk assessments; Pluvial flooding; Floods; catastrophic event; coastal zone; design; flood damage; flooding; hydrodynamics; management practice; rainfall; risk assessment; strategic approach; tide; India
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154002
作者单位	Environmental Science and Engineering Department, Indian Institute of Technology Bombay, Mumbai, 400076, India; Department of Regional Water Studies, TERI School of Advanced Studies, Delhi, Vasant Kunj, 110070, India; Interdisciplinary Program in Climate Studies, Indian Institute of Technology Bombay, Mumbai, 400076, India; Centre for Urban Science and Engineering, Indian Institute of Technology Bombay, Mumbai, 400076, India; Department of Civil Engineering, Indian Institute of Technology Bombay, Mumbai, 400076, India
推荐引用方式 GB/T 7714	Mohanty M.P.,Sherly M.A.,Ghosh S.,et al. Tide-rainfall flood quotient: An incisive measure of comprehending a region's response to storm-tide and pluvial flooding[J],2020,15(6).
APA	Mohanty M.P.,Sherly M.A.,Ghosh S.,&Karmakar S..(2020).Tide-rainfall flood quotient: An incisive measure of comprehending a region's response to storm-tide and pluvial flooding.Environmental Research Letters,15(6).
MLA	Mohanty M.P.,et al."Tide-rainfall flood quotient: An incisive measure of comprehending a region's response to storm-tide and pluvial flooding".Environmental Research Letters 15.6(2020).