Capturing Urban Heterogeneity Enhances Tropical Cyclones Simulation in Houston

Fung, K. Y.; Yang, Z.‐L.; Niyogi, D.

doi:10.1029/2024JD040807

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i

Capturing Urban Heterogeneity Enhances Tropical Cyclones Simulation in Houston

2024
By Fung, K. Y. ; Yang, Z.‐L. ; Niyogi, D.
Source: Journal of Geophysical Research: Atmospheres, 129(19)

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Journal Title:

Journal of Geophysical Research: Atmospheres
Personal Author:

Fung, K. Y. ; Yang, Z.‐L. ; Niyogi, D.

Fung, K. Y. ; Yang, Z.‐L. ; Niyogi, D. Less -
NOAA Program & Office:

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

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

Urbanization in the coastal region has increased socioeconomic losses from landfalling tropical cyclones (TCs). Although previous studies have explored the broad impacts of urbanization on TCs, the effect of heterogeneity caused by local intra‐urban variability has not been examined. To address this gap, this study utilized the urban Local Climate Zone (LCZ) to capture the urban landscape heterogeneity and the impacts of this representation on the simulation of the post‐landfall TCs characteristics in Houston. Taking the case of two recent TCs: Hurricane Harvey (occurred in 2017) and Tropical Storm Imelda (occurred in 2019), the study evaluated the impact of urban heterogeneity on 10‐m winds, 2‐m temperature, land surface temperature, and precipitation across Houston. The consideration of intra‐urban heterogeneity using LCZ can improve the 10‐m winds, 2‐m temperature, and spatial pattern of land surface temperature. Although the cumulative rainfall remained largely similar within the experiments (with and without LCZ), incorporating intra‐urban heterogeneity notably modified the spatial structure of urban rainfall, particularly in simulating heavy rainfall hot spots. These findings are consistent for both TCs and demonstrate the positive impact of incorporating intra‐urban heterogeneity on the landfalling TC simulations over the Houston area.
Source:

Journal of Geophysical Research: Atmospheres, 129(19)
DOI:

https://doi.org/10.1029/2024JD040807
ISSN:

2169-897X;2169-8996;
Format:

pdf
Publisher:

American Geophysical Union (AGU)
Document Type:

Journal Article
License:

https://creativecommons.org/licenses/by/4.0/
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CC BY
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Submitted
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urn:sha-512:6a54b1834c22d721a255e40b45d416ac6966128e284f4236789e28eaee3de122e6bbabb513fad0fe43de03bfe8324ea0086a9226af9d2a6c10d4f135b1c7e8f1
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Capturing Urban Heterogeneity Enhances Tropical Cyclones Simulation in Houston

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