A new tropical cyclone surge index incorporating the effects of coastal geometry, bathymetry and storm information

Abstract This study presents a new storm surge hazard potential index (SSHPI) for estimating tropical cyclone (TC) induced peak surge levels at a coast. The SSHPI incorporates parameters that are often readily available at real-time: intensity in 10-min maximum wind speed, radius of 50-kt wind, tran...

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Autores principales:	Md. Rezuanul Islam, Chia-Ying Lee, Kyle T. Mandli, Hiroshi Takagi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/02c94819efa647f3996a37dfc2f6681c
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spelling	oai:doaj.org-article:02c94819efa647f3996a37dfc2f6681c2021-12-02T18:51:41ZA new tropical cyclone surge index incorporating the effects of coastal geometry, bathymetry and storm information10.1038/s41598-021-95825-72045-2322https://doaj.org/article/02c94819efa647f3996a37dfc2f6681c2021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-95825-7https://doaj.org/toc/2045-2322Abstract This study presents a new storm surge hazard potential index (SSHPI) for estimating tropical cyclone (TC) induced peak surge levels at a coast. The SSHPI incorporates parameters that are often readily available at real-time: intensity in 10-min maximum wind speed, radius of 50-kt wind, translation speed, coastal geometry, and bathymetry information. The inclusion of translation speed and coastal geometry information lead to improvements of the SSHPI to other existing surge indices. A retrospective analysis of SSHPI using data from 1978–2019 in Japan suggests that this index captures historical events reasonably well. In particular, it explains ~ 66% of the observed variance and ~ 74% for those induced by TCs whose landfall intensity was larger than 79-kt. The performance of SSHPI is not sensitive to the type of coastal geometry (open coasts or semi-enclosed bays). Such a prediction methodology can decrease numerical computation requirements, improve public awareness of surge hazards, and may also be useful for communicating surge risk.Md. Rezuanul IslamChia-Ying LeeKyle T. MandliHiroshi TakagiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Md. Rezuanul Islam Chia-Ying Lee Kyle T. Mandli Hiroshi Takagi A new tropical cyclone surge index incorporating the effects of coastal geometry, bathymetry and storm information
description	Abstract This study presents a new storm surge hazard potential index (SSHPI) for estimating tropical cyclone (TC) induced peak surge levels at a coast. The SSHPI incorporates parameters that are often readily available at real-time: intensity in 10-min maximum wind speed, radius of 50-kt wind, translation speed, coastal geometry, and bathymetry information. The inclusion of translation speed and coastal geometry information lead to improvements of the SSHPI to other existing surge indices. A retrospective analysis of SSHPI using data from 1978–2019 in Japan suggests that this index captures historical events reasonably well. In particular, it explains ~ 66% of the observed variance and ~ 74% for those induced by TCs whose landfall intensity was larger than 79-kt. The performance of SSHPI is not sensitive to the type of coastal geometry (open coasts or semi-enclosed bays). Such a prediction methodology can decrease numerical computation requirements, improve public awareness of surge hazards, and may also be useful for communicating surge risk.
format	article
author	Md. Rezuanul Islam Chia-Ying Lee Kyle T. Mandli Hiroshi Takagi
author_facet	Md. Rezuanul Islam Chia-Ying Lee Kyle T. Mandli Hiroshi Takagi
author_sort	Md. Rezuanul Islam
title	A new tropical cyclone surge index incorporating the effects of coastal geometry, bathymetry and storm information
title_short	A new tropical cyclone surge index incorporating the effects of coastal geometry, bathymetry and storm information
title_full	A new tropical cyclone surge index incorporating the effects of coastal geometry, bathymetry and storm information
title_fullStr	A new tropical cyclone surge index incorporating the effects of coastal geometry, bathymetry and storm information
title_full_unstemmed	A new tropical cyclone surge index incorporating the effects of coastal geometry, bathymetry and storm information
title_sort	new tropical cyclone surge index incorporating the effects of coastal geometry, bathymetry and storm information
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/02c94819efa647f3996a37dfc2f6681c
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A new tropical cyclone surge index incorporating the effects of coastal geometry, bathymetry and storm information

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