Identification

Title

Largeâ€eddy simulation of internal boundary layers and nearâ€surface wind estimation during hurricane landfalls

Abstract

Accurate estimation of coastal near‐surface winds during hurricane landfalls remains challenging, partly attributable to an insufficient understanding of the wind profiles within the internal boundary layer (IBL) induced by an abrupt surface roughness change. This study addresses this issue by performing three semi‐idealized large‐eddy simulations. Results indicate that a nascent log layer emerges within the IBL, and its depth gradually increases from ∼60 m near the coast to ∼400 m 12 km inland, where the boundary layer transition is nearly complete. This nascent log layer is superimposed by another log layer originating from the upstream marine boundary layer. While turbulence kinetic energy (TKE) is maximized near the surface over both water and land, peak TKE values over land are a factor of 2 greater due to the amplified near‐surface vertical wind shear. The capability and uncertainty of coastal radars and radiosondes to detect IBL and estimate 10‐m winds are discussed.

Resource type

document

Resource locator

Unique resource identifier

code

https://n2t.net/ark:/85065/d7f1945t

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

geoscientificInformation

Keywords

Keyword set

keyword value

Text

originating controlled vocabulary

title

Resource Type

reference date

date type

publication

effective date

2016-01-01T00:00:00Z

Geographic location

West bounding longitude

East bounding longitude

North bounding latitude

South bounding latitude

Temporal reference

Temporal extent

Begin position

End position

Dataset reference date

date type

publication

effective date

2025-06-16T00:00:00Z

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

<span style="font-family:Arial;font-size:10pt;font-style:normal;" data-sheets-root="1">Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.</span>

Limitations on public access

None

Responsible organisations

Responsible party

contact position

OpenSky Support

organisation name

UCAR/NCAR - Library

full postal address

PO Box 3000

Boulder

80307-3000

email address

opensky@ucar.edu

web address

http://opensky.ucar.edu/

name: homepage

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact