Earth Sciences

Uncertainties in tropical cyclone landfall decay

K. T. F. Chan, J. C. L. Chan, et al.

Research by Kelvin T. F. Chan, Johnny C. L. Chan, Kailin Zhang, and Yue Wu unveils the complexities of tropical cyclone landfall decay in a warming climate. The study highlights that reported trends in decay are uncertain and vary significantly based on location, time, and methodologies. An essential factor identified is the effective area of ocean moisture supply, influenced by landfalling track modes.

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Abstract

Recent studies suggesting a slowdown in tropical cyclone landfall decay in a warming climate are challenged. A global climatology of landfall decay, based on best-track data, reveals that reported trends are uncertain and not universal, varying spatially, temporally, and based on data source and methodology. The effective area of ocean moisture supply, influenced by landfalling track modes, is identified as a key factor in decay.

Publisher

npj Climate and Atmospheric Science

Published On

Nov 17, 2022

Authors

Kelvin T. F. Chan, Johnny C. L. Chan, Kailin Zhang, Yue Wu