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@article{Phillipson:2021:10.1029/2021gl094105,
author = {Phillipson, LM and Toumi, R},
doi = {10.1029/2021gl094105},
journal = {Geophysical Research Letters},
pages = {1--9},
title = {A physical interpretation of recent tropical cyclone postlandfall decay},
url = {http://dx.doi.org/10.1029/2021gl094105},
volume = {48},
year = {2021}
}

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TY  - JOUR
AB  - The decay of landfalling tropical cyclones 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 h 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 h of gale force winds for a typical Category 1 at landfall.
AU  - Phillipson,LM
AU  - Toumi,R
DO  - 10.1029/2021gl094105
EP  - 9
PY  - 2021///
SN  - 0094-8276
SP  - 1
TI  - A physical interpretation of recent tropical cyclone postlandfall decay
T2  - Geophysical Research Letters
UR  - http://dx.doi.org/10.1029/2021gl094105
UR  - https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2021GL094105
VL  - 48
ER  -

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