The role of human-induced climate change in heavy rainfall events such as the one associated with Typhoon Hagibis

Sihan Li () and Friederike E. L. Otto
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Sihan Li: University of Oxford
Friederike E. L. Otto: Imperial College London

Climatic Change, 2022, vol. 172, issue 1, No 7, 19 pages

Abstract: Abstract Around October 12, 2019, torrential rainfall from Typhoon Hagibis caused large-scale flooding in a large area around the metropole region of Tokyo leading to large-scale destruction including losses of lives, livelihoods, and economic losses of well over $10 bn US dollars. In this paper we use a multi-method probabilistic event attribution framework to assess the role of human-induced climate change in the heavy rainfall event responsible for a large proportion of the damages. Combining different observational datasets and various climate model simulations, we find an increase in the likelihood of such an event to occur of 15–150%. We use this assessment and the calculated fraction of attributable risk (FAR) to further estimate the economic costs attributable to anthropogenic climate change based on the insured economic losses. Our conservative estimate is that ~$4bn of the damages due to the extreme heavy rainfall associated with Typhoon Hagibis are due to human-induced climate change.

Keywords: Extreme weather attribution; Heavy rainfall; Typhoon Hagibis; Multi-method; Attributable economic costs (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (4)

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DOI: 10.1007/s10584-022-03344-9

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