Flood inundation assessment for the Hanoi Central Area, Vietnam under historical and extreme rainfall conditions

Abstract Flash floods have long been common in Asian cities, with recent increases in urbanization and extreme rainfall driving increasingly severe and frequent events. Floods in urban areas cause significant damage to infrastructure, communities and the environment. Numerical modelling of flood inu...

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Autores principales:	Pingping Luo, Dengrui Mu, Han Xue, Thanh Ngo-Duc, Kha Dang-Dinh, Kaoru Takara, Daniel Nover, Geoffrey Schladow
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e4a43678456c4a1bb7f655922d44f218
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spelling	oai:doaj.org-article:e4a43678456c4a1bb7f655922d44f2182021-12-02T11:41:13ZFlood inundation assessment for the Hanoi Central Area, Vietnam under historical and extreme rainfall conditions10.1038/s41598-018-30024-52045-2322https://doaj.org/article/e4a43678456c4a1bb7f655922d44f2182018-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-30024-5https://doaj.org/toc/2045-2322Abstract Flash floods have long been common in Asian cities, with recent increases in urbanization and extreme rainfall driving increasingly severe and frequent events. Floods in urban areas cause significant damage to infrastructure, communities and the environment. Numerical modelling of flood inundation offers detailed information necessary for managing flood risk in such contexts. This study presents a calibrated flood inundation model using referenced photos, an assessment of the influence of four extreme rainfall events on water depth and inundation area in the Hanoi central area. Four types of historical and extreme rainfall were input into the inundation model. The modeled results for a 2008 flood event with 9 referenced stations resulted in an R2 of 0.6 compared to observations. The water depth at the different locations was simulated under the four extreme rainfall types. The flood inundation under the Probable Maximum Precipitation presents the highest risk in terms of water depth and inundation area. These results provide insights into managing flood risk, designing flood prevention measures, and appropriately locating pump stations.Pingping LuoDengrui MuHan XueThanh Ngo-DucKha Dang-DinhKaoru TakaraDaniel NoverGeoffrey SchladowNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-11 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Pingping Luo Dengrui Mu Han Xue Thanh Ngo-Duc Kha Dang-Dinh Kaoru Takara Daniel Nover Geoffrey Schladow Flood inundation assessment for the Hanoi Central Area, Vietnam under historical and extreme rainfall conditions
description	Abstract Flash floods have long been common in Asian cities, with recent increases in urbanization and extreme rainfall driving increasingly severe and frequent events. Floods in urban areas cause significant damage to infrastructure, communities and the environment. Numerical modelling of flood inundation offers detailed information necessary for managing flood risk in such contexts. This study presents a calibrated flood inundation model using referenced photos, an assessment of the influence of four extreme rainfall events on water depth and inundation area in the Hanoi central area. Four types of historical and extreme rainfall were input into the inundation model. The modeled results for a 2008 flood event with 9 referenced stations resulted in an R2 of 0.6 compared to observations. The water depth at the different locations was simulated under the four extreme rainfall types. The flood inundation under the Probable Maximum Precipitation presents the highest risk in terms of water depth and inundation area. These results provide insights into managing flood risk, designing flood prevention measures, and appropriately locating pump stations.
format	article
author	Pingping Luo Dengrui Mu Han Xue Thanh Ngo-Duc Kha Dang-Dinh Kaoru Takara Daniel Nover Geoffrey Schladow
author_facet	Pingping Luo Dengrui Mu Han Xue Thanh Ngo-Duc Kha Dang-Dinh Kaoru Takara Daniel Nover Geoffrey Schladow
author_sort	Pingping Luo
title	Flood inundation assessment for the Hanoi Central Area, Vietnam under historical and extreme rainfall conditions
title_short	Flood inundation assessment for the Hanoi Central Area, Vietnam under historical and extreme rainfall conditions
title_full	Flood inundation assessment for the Hanoi Central Area, Vietnam under historical and extreme rainfall conditions
title_fullStr	Flood inundation assessment for the Hanoi Central Area, Vietnam under historical and extreme rainfall conditions
title_full_unstemmed	Flood inundation assessment for the Hanoi Central Area, Vietnam under historical and extreme rainfall conditions
title_sort	flood inundation assessment for the hanoi central area, vietnam under historical and extreme rainfall conditions
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/e4a43678456c4a1bb7f655922d44f218
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Flood inundation assessment for the Hanoi Central Area, Vietnam under historical and extreme rainfall conditions

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