Nearshore Hurricane Intensity Change and Post-Landfall Dissipation Along The United States Gulf and East Coasts
Document Type
Article
Publication Date
2021
Digital Object Identifier (DOI)
https://doi.org/10.1029/2021GL094680
Abstract
Intensification and dissipation of a hurricane before and after landfall, respectively, are crucial for coastal and inland risk potential. This study examines the relationship between intensity change prior to landfall and post-landfall dissipation. The relative difference of 24 h accumulated cyclone energy generated before and after landfall is defined as the landfall dissipation rate (LFDR). This study focuses on the continental United States and shows that the 24 h hurricane LFDR is significantly negatively related to the 24 h intensity change before landfall. This implies hurricanes undergoing rapid intensification before landfall weaken at a slower rate after landfall. The decay rate is also positively correlated with landfall intensity but is less certain for Category 4–5 hurricanes (>112 kt). The relationship between near-shore wind change and post-landfall decay is not equally distributed along the U.S. coast, with pre-landfall intensification more common along the Gulf Coast and a LFDR that varies.
Was this content written or created while at USF?
Yes
Citation / Publisher Attribution
Geophysical Research Letters, v. 48, issue 17, art. e2021GL094680
Scholar Commons Citation
Zhu, Yi-Jie; Collins, Jennifer M.; and Klotzbach, Philip J., "Nearshore Hurricane Intensity Change and Post-Landfall Dissipation Along The United States Gulf and East Coasts" (2021). School of Geosciences Faculty and Staff Publications. 2345.
https://digitalcommons.usf.edu/geo_facpub/2345
