The uncertainty of climate change effect on the tropical cyclone (TC) frequency and intensity has big impact on TC hazard assessment. In this study, a statistical dynamics synthetic TC model is used to generate TCs in the Western North Pacific (WNP) basin. Accordingly, three approaches are proposed to study the climate change impact on TC induced extreme wind speeds, using marine and atmospheric parameters from global circulation models (GCMs). The study covers three timespans, historical (1981–2010), mid-century (2041–2070), and late-century (2071–2100) and focuses on the Shared Socioeconomic Pathway 585 (SSP585) scenarios. For the genesis model: Approach #1 uses the TC detection method to extract the TC genesis properties from GCMs; Approach #2 uses the statistical TC genesis index to evaluate the TC genesis information; and Approach #3 calculates the relative genesis change between timespans under GCMs and then uses it to scale the observed datasets. For the intensity model, Approaches #1 and #2 use the marine and atmospheric parameters from GCMs directly, while Approach #3 replaces the GCM future datasets by adding the relative change to the reanalysis datasets. A 50-year wind speed ratio between current and future scenarios is used to assess the impact on TC hazard. All approaches indicate that the climate impact on TC risk varies over the WNP basin, with coastal cities in high latitude more likely to experience increased extreme TC wind speeds than those at low latitude. Approaches #1 and #2 give close relative extreme wind speed change, compared to further larger increase by Approach #3.
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April 2025
Research Article|
April 15 2025
Projection of climate change impact on tropical cyclone hazard in Western North Pacific basin

Dengguo Wu (吴登国)
;
Dengguo Wu (吴登国)
(Conceptualization, Data curation, Methodology, Software, Writing – original draft)
1
Arup Group Limited
, Hong Kong, China
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Xiaoye Yu (于晓野)
;
Xiaoye Yu (于晓野)
a)
(Conceptualization, Funding acquisition, Methodology, Project administration, Supervision, Writing – original draft)
1
Arup Group Limited
, Hong Kong, China
a)Author to whom correspondence should be addressed: [email protected]
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Yu Chen (陈煜);
Yu Chen (陈煜)
(Methodology)
2
College of Transportation and Civil Engineering, Fujian Agriculture and Forestry University
, Fuzhou, China
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Kin Sik Liu (廖健錫)
;
Kin Sik Liu (廖健錫)
(Data curation, Methodology)
1
Arup Group Limited
, Hong Kong, China
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Zhongdong Duan (段忠东)
;
Zhongdong Duan (段忠东)
(Methodology, Writing – review & editing)
3
School of Intelligent Civil and Ocean Engineering, Harbin Institute of Technology (Shenzhen)
, Shenzhen, China
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Ahsan Kareem (احسان کریم)
Ahsan Kareem (احسان کریم)
(Writing – review & editing)
4
NatHaz Modeling Laboratory, University of Notre Dame
, Notre Dame, Indiana 46556, USA
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Yu Chen (陈煜)
2
1
Arup Group Limited
, Hong Kong, China
2
College of Transportation and Civil Engineering, Fujian Agriculture and Forestry University
, Fuzhou, China
3
School of Intelligent Civil and Ocean Engineering, Harbin Institute of Technology (Shenzhen)
, Shenzhen, China
4
NatHaz Modeling Laboratory, University of Notre Dame
, Notre Dame, Indiana 46556, USA
a)Author to whom correspondence should be addressed: [email protected]
Physics of Fluids 37, 047139 (2025)
Article history
Received:
January 27 2025
Accepted:
March 18 2025
Connected Content
A companion article has been published:
Tropical storms may threaten higher latitudes by the end of the century, thanks to climate change
Citation
Dengguo Wu, Xiaoye Yu, Yu Chen, Kin Sik Liu, Zhongdong Duan, Ahsan Kareem; Projection of climate change impact on tropical cyclone hazard in Western North Pacific basin. Physics of Fluids 1 April 2025; 37 (4): 047139. https://doi.org/10.1063/5.0260880
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