Airborne Doppler Radar Observations of Tropical Cyclone Boundary Layer Kinematic Structure and Evolution During Landfall

Rogers, Robert F.; Zhang, Jun A.

doi:10.1029/2023GL105548

i

Airborne Doppler Radar Observations of Tropical Cyclone Boundary Layer Kinematic Structure and Evolution During Landfall

2023
By Rogers, Robert F. ; Zhang, Jun A.

Details

Journal Title:

Geophysical Research Letters
Personal Author:

Rogers, Robert F. ; Zhang, Jun A.
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; AOML (Atlantic Oceanographic and Meteorological Laboratory) ; CIMAS (Cooperative Institute for Marine and Atmospheric Studies)
Description:

Airborne Doppler radar observations of the wind field in the tropical cyclone boundary layer (TCBL) during the landfall of Hurricane Ida (2021) are examined here. Asymmetries in tangential and radial flow are governed by tropical cyclone (TC) motion and vertical wind shear prior to landfall, while frictional effects dominate the asymmetry location during landfall. Strong TCBL inflow on the offshore‐flow side of Ida occurs during landfall, while the location of the peak tangential wind at the top of the TCBL during this period is located on the onshore‐flow side. A comparison of these observations with a numerical simulation of TC landfall shows many consistencies with the modeling study, though there are some notable differences that may be related to differences in the characteristics of the land surface between the simulation and the observations here.
Keywords:

General Earth And Planetary Sciences Geophysics General Earth And Planetary Sciences General Earth And Planetary Sciences
Source:

Geophysical Research Letters, 50(23)
DOI:

https://doi.org/10.1029/2023GL105548
ISSN:

0094-8276 ; 1944-8007
Format:

PDF
Publisher:

American Geophysical Union (AGU)
Document Type:

Journal Article
Funding:

Grant no. NA21OAR4590370 ; Grant no. NA22OAR4590178 ; Grant no. NA22OAR4050669D
License:

https://creativecommons.org/licenses/by/4.0/
Rights Information:

CC BY
Compliance:

Submitted
Main Document Checksum:

urn:sha256:6c2be665d1f5fba6392f467a4b70b1817288fbe4b0effd9eb17324a016fd984d
Download URL:

https://repository.library.noaa.gov/view/noaa/56153/noaa_56153_DS1.pdf
File Type:

[PDF - 1.43 MB ]

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