Global increase of tropical cyclone precipitation rate toward coasts
Author(s)
Qi, Weiqing
Yong, Bin
Ritchie, Elizabeth A
Tyo, J Scott
Toumi, Ralf
Type
Journal Article
Abstract
Tropical cyclones (TCs) induced precipitation poses a critical threat to coastal regions. In the context of global warming and humidification, it remains to be clarified whether coastal exposure to TC-induced precipitation has a detectable response. Based on multi-source data sets in the past four decades, this study investigates the coastward trends of global TC-induced precipitation changes. We find that the TC lifetime maximum precipitation intensities show a statistically significant landward migration, moving about 30 km per decade. Furthermore, the precipitation intensities of TCs exhibit faster growth in coastal areas, with a concurrent rapid expansion of the land coverage of TC-induced precipitation. A consistent pattern of change is demonstrated between intensifying TC-induced precipitation and the warming-humidifying ambient environment, with higher significance in coastal areas. Our findings suggest that the spatial heterogeneity in global climate change may have contributed to the modulation of coastal TC-induced precipitation.
Date Issued
2025-09-16
Date Acceptance
2025-08-27
Citation
Geophysical Research Letters, 2025, 52 (17)
ISSN
0094-8276
Publisher
Wiley
Journal / Book Title
Geophysical Research Letters
Volume
52
Issue
17
Copyright Statement
© 2025. The Author(s). This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
License URL
Subjects
CLIMATE
climate change
coastal area
Geology
Geosciences, Multidisciplinary
global warming
MIGRATION
Physical Sciences
precipitation
Science & Technology
tropical cyclone
Publication Status
Published
Article Number
e2025GL115500
Date Publish Online
2025-09-10