Climate costs of tropical cyclone losses also depend on rain

It is well established that climate change will lead to changes in tropical cyclone (TC) characteristics and affiliated impacts to human communities. While a growing social science literature estimates losses from TCs, almost all have characterized TCs by wind speed alone. However, TC winds are comm...

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Main Authors: Laura A Bakkensen, Doo-Sun R Park, Raja Shanti Ranjan Sarkar
Format: Article
Language:English
Published: IOP Publishing 2018-01-01
Series:Environmental Research Letters
Subjects:
Online Access:https://doi.org/10.1088/1748-9326/aad056
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author Laura A Bakkensen
Doo-Sun R Park
Raja Shanti Ranjan Sarkar
author_facet Laura A Bakkensen
Doo-Sun R Park
Raja Shanti Ranjan Sarkar
author_sort Laura A Bakkensen
collection DOAJ
description It is well established that climate change will lead to changes in tropical cyclone (TC) characteristics and affiliated impacts to human communities. While a growing social science literature estimates losses from TCs, almost all have characterized TCs by wind speed alone. However, TC winds are commonly accompanied by intense rainfall, both of which will likely be impacted by climate change. We assess the impact of rain on current and future TC losses and estimate the bias in loss calculations from omitting rainfall. Using a TC Integrated Assessment Model utilizing 60 000 simulated TCs making landfall in South Korea, we find rain to be a significant loss determinant. For both the wind-only and wind + rain cases, socioeconomic change will cause a decrease in fatalities and a large increase in property losses due to a shrinking population and growing wealth. Regarding climate change, the wind-only case considerably underestimates the climate costs of TC losses compared to the wind + rain case, driven by notable increases in future rainfall in contrast with minor wind intensity changes. While the relative impacts of TC wind versus rain under climate change will no doubt be different across countries, our results highlight the importance of accounting for both wind and rainfall in research and policy, especially in mitigation and adaptation planning.
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spelling doaj.art-c7b861a34ccd48ecb9eec0232e624b782023-08-09T14:36:22ZengIOP PublishingEnvironmental Research Letters1748-93262018-01-0113707403410.1088/1748-9326/aad056Climate costs of tropical cyclone losses also depend on rainLaura A Bakkensen0Doo-Sun R Park1https://orcid.org/0000-0002-4871-1341Raja Shanti Ranjan Sarkar2School of Government and Public Policy , University of Arizona, Tucson, AZ, United States of AmericaDepartment of Earth Sciences , Chosun University, Gwangju, Republic of KoreaSchool of Government and Public Policy , University of Arizona, Tucson, AZ, United States of AmericaIt is well established that climate change will lead to changes in tropical cyclone (TC) characteristics and affiliated impacts to human communities. While a growing social science literature estimates losses from TCs, almost all have characterized TCs by wind speed alone. However, TC winds are commonly accompanied by intense rainfall, both of which will likely be impacted by climate change. We assess the impact of rain on current and future TC losses and estimate the bias in loss calculations from omitting rainfall. Using a TC Integrated Assessment Model utilizing 60 000 simulated TCs making landfall in South Korea, we find rain to be a significant loss determinant. For both the wind-only and wind + rain cases, socioeconomic change will cause a decrease in fatalities and a large increase in property losses due to a shrinking population and growing wealth. Regarding climate change, the wind-only case considerably underestimates the climate costs of TC losses compared to the wind + rain case, driven by notable increases in future rainfall in contrast with minor wind intensity changes. While the relative impacts of TC wind versus rain under climate change will no doubt be different across countries, our results highlight the importance of accounting for both wind and rainfall in research and policy, especially in mitigation and adaptation planning.https://doi.org/10.1088/1748-9326/aad056tropical cyclonerainfallclimate costclimate change
spellingShingle Laura A Bakkensen
Doo-Sun R Park
Raja Shanti Ranjan Sarkar
Climate costs of tropical cyclone losses also depend on rain
Environmental Research Letters
tropical cyclone
rainfall
climate cost
climate change
title Climate costs of tropical cyclone losses also depend on rain
title_full Climate costs of tropical cyclone losses also depend on rain
title_fullStr Climate costs of tropical cyclone losses also depend on rain
title_full_unstemmed Climate costs of tropical cyclone losses also depend on rain
title_short Climate costs of tropical cyclone losses also depend on rain
title_sort climate costs of tropical cyclone losses also depend on rain
topic tropical cyclone
rainfall
climate cost
climate change
url https://doi.org/10.1088/1748-9326/aad056
work_keys_str_mv AT lauraabakkensen climatecostsoftropicalcyclonelossesalsodependonrain
AT doosunrpark climatecostsoftropicalcyclonelossesalsodependonrain
AT rajashantiranjansarkar climatecostsoftropicalcyclonelossesalsodependonrain