GSTDTAP  > 气候变化
DOI10.1029/2021GL094105
A Physical Interpretation of Recent Tropical Cyclone Post Landfall Decay
L. M. Phillipson; R. Toumi
2021-08-29
发表期刊Geophysical Research Letters
出版年2021
英文摘要

The decay of landfalling tropical cyclones (TCs) is important to the damage caused. We examine a simple physically based decay model of maximum surface winds driven by frictional turbulent drag and a modification accounting for partial to complete land roughness. The model fits an algebraic decay with a parameter determined by the ratio of the surface drag coefficient to the effective vortex depth. This parameter has been decreasing from 1980 to 2018. There is also a global mean increase of wind speed 24 hours after landfall of +1.13 m/s per decade. We cannot exclude the possibility that this trend is driven by the initial wind speed increase, but it is most likely due to a slowing of the decay. This weaker decay amounts to an additional 7 hours of gale force winds for a typical Category 1 at landfall.

领域气候变化
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文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/336542
专题气候变化
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L. M. Phillipson,R. Toumi. A Physical Interpretation of Recent Tropical Cyclone Post Landfall Decay[J]. Geophysical Research Letters,2021.
APA L. M. Phillipson,&R. Toumi.(2021).A Physical Interpretation of Recent Tropical Cyclone Post Landfall Decay.Geophysical Research Letters.
MLA L. M. Phillipson,et al."A Physical Interpretation of Recent Tropical Cyclone Post Landfall Decay".Geophysical Research Letters (2021).
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