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Article
Nearshore Hurricane Intensity Change and Post-Landfall Dissipation Along The United States Gulf and East Coasts
Geophysical Research Letters
  • Yi-Jie Zhu, University of South Florida
  • Jennifer M. Collins, University of South Florida
  • Philip J. Klotzbach, Colorado State University
Document Type
Article
Publication Date
1-1-2021
Digital Object Identifier (DOI)
https://doi.org/10.1029/2021GL094680
Disciplines
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.

Citation / Publisher Attribution

Geophysical Research Letters, v. 48, issue 17, art. e2021GL094680

Citation Information
Yi-Jie Zhu, Jennifer M. Collins and Philip J. Klotzbach. "Nearshore Hurricane Intensity Change and Post-Landfall Dissipation Along The United States Gulf and East Coasts" Geophysical Research Letters Vol. 48 Iss. 17 (2021)
Available at: http://works.bepress.com/jennifercollins/77/