Global mortality from storm surges is decreasing

Changes in society’s vulnerability to natural hazards are important to understand, as they determine current and future risks, and the need to improve protection. Very large impacts including high numbers of fatalities occur due to single storm surge flood events. Here, we report on impacts of globa...

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Main Authors: Laurens M Bouwer, Sebastiaan N Jonkman
Format: Article
Language:English
Published: IOP Publishing 2018-01-01
Series:Environmental Research Letters
Subjects:
Online Access:https://doi.org/10.1088/1748-9326/aa98a3
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author Laurens M Bouwer
Sebastiaan N Jonkman
author_facet Laurens M Bouwer
Sebastiaan N Jonkman
author_sort Laurens M Bouwer
collection DOAJ
description Changes in society’s vulnerability to natural hazards are important to understand, as they determine current and future risks, and the need to improve protection. Very large impacts including high numbers of fatalities occur due to single storm surge flood events. Here, we report on impacts of global coastal storm surge events since the year 1900, based on a compilation of events and data on loss of life. We find that over the past, more than eight thousand people are killed and 1.5 million people are affected annually by storm surges. The occurrence of very substantial loss of life (>10 000 persons) from single events has however decreased over time. Moreover, there is a consistent decrease in event mortality, measured by the fraction of exposed people that are killed, for all global regions, except South East Asia. Average mortality for storm surges is slightly higher than for river floods, but lower than for flash floods. We also find that for the same coastal surge water level, mortality has decreased over time. This indicates that risk reduction efforts have been successful, but need to be continued with projected climate change, increased rates of sea-level rise and urbanisation in coastal zones.
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spelling doaj.art-7ce0d50893244e5abc630b5b8d2aa00a2023-08-09T14:37:47ZengIOP PublishingEnvironmental Research Letters1748-93262018-01-0113101400810.1088/1748-9326/aa98a3Global mortality from storm surges is decreasingLaurens M Bouwer0https://orcid.org/0000-0003-3498-2586Sebastiaan N Jonkman1Deltares , Delft, The Netherlands; Author to whom any correspondence should be addressed.Delft University of Technology, Faculty of Civil Engineering and Geosciences, Department of Hydraulic Engineering , Delft, The NetherlandsChanges in society’s vulnerability to natural hazards are important to understand, as they determine current and future risks, and the need to improve protection. Very large impacts including high numbers of fatalities occur due to single storm surge flood events. Here, we report on impacts of global coastal storm surge events since the year 1900, based on a compilation of events and data on loss of life. We find that over the past, more than eight thousand people are killed and 1.5 million people are affected annually by storm surges. The occurrence of very substantial loss of life (>10 000 persons) from single events has however decreased over time. Moreover, there is a consistent decrease in event mortality, measured by the fraction of exposed people that are killed, for all global regions, except South East Asia. Average mortality for storm surges is slightly higher than for river floods, but lower than for flash floods. We also find that for the same coastal surge water level, mortality has decreased over time. This indicates that risk reduction efforts have been successful, but need to be continued with projected climate change, increased rates of sea-level rise and urbanisation in coastal zones.https://doi.org/10.1088/1748-9326/aa98a3loss of lifestorm surgecoastvulnerabilitymortalityclimate change
spellingShingle Laurens M Bouwer
Sebastiaan N Jonkman
Global mortality from storm surges is decreasing
Environmental Research Letters
loss of life
storm surge
coast
vulnerability
mortality
climate change
title Global mortality from storm surges is decreasing
title_full Global mortality from storm surges is decreasing
title_fullStr Global mortality from storm surges is decreasing
title_full_unstemmed Global mortality from storm surges is decreasing
title_short Global mortality from storm surges is decreasing
title_sort global mortality from storm surges is decreasing
topic loss of life
storm surge
coast
vulnerability
mortality
climate change
url https://doi.org/10.1088/1748-9326/aa98a3
work_keys_str_mv AT laurensmbouwer globalmortalityfromstormsurgesisdecreasing
AT sebastiaannjonkman globalmortalityfromstormsurgesisdecreasing