Poleward Migration of Spatial Asymmetry in Tropical Cyclone Precipitation over the Western North Pacific

Xia Ju; Jia Sun; Dijia Wu; Lingli Li; Xiaomin Hu; Zhaopeng Ren; Yanliang Guo; Long Yu; Zhenli Hui; Xuejun Xiong

doi:10.3390/atmos14071074

Atmosphere (Jun 2023)

Poleward Migration of Spatial Asymmetry in Tropical Cyclone Precipitation over the Western North Pacific

Xia Ju,
Jia Sun,
Dijia Wu,
Lingli Li,
Xiaomin Hu,
Zhaopeng Ren,
Yanliang Guo,
Long Yu,
Zhenli Hui,
Xuejun Xiong

Affiliations

Xia Ju: First Institute of Oceanography, and Key Laboratory of Marine Science and Numerical Modeling, Ministry of Natural Resources, Qingdao 266061, China
Jia Sun: First Institute of Oceanography, and Key Laboratory of Marine Science and Numerical Modeling, Ministry of Natural Resources, Qingdao 266061, China
Dijia Wu: First Institute of Oceanography, and Key Laboratory of Marine Science and Numerical Modeling, Ministry of Natural Resources, Qingdao 266061, China
Lingli Li: First Institute of Oceanography, and Key Laboratory of Marine Science and Numerical Modeling, Ministry of Natural Resources, Qingdao 266061, China
Xiaomin Hu: First Institute of Oceanography, and Key Laboratory of Marine Science and Numerical Modeling, Ministry of Natural Resources, Qingdao 266061, China
Zhaopeng Ren: Qingdao Meteorological Bureau, Qingdao 266003, China
Yanliang Guo: First Institute of Oceanography, and Key Laboratory of Marine Science and Numerical Modeling, Ministry of Natural Resources, Qingdao 266061, China
Long Yu: First Institute of Oceanography, and Key Laboratory of Marine Science and Numerical Modeling, Ministry of Natural Resources, Qingdao 266061, China
Zhenli Hui: First Institute of Oceanography, and Key Laboratory of Marine Science and Numerical Modeling, Ministry of Natural Resources, Qingdao 266061, China
Xuejun Xiong: First Institute of Oceanography, and Key Laboratory of Marine Science and Numerical Modeling, Ministry of Natural Resources, Qingdao 266061, China

DOI: https://doi.org/10.3390/atmos14071074
Journal volume & issue: Vol. 14, no. 7
p. 1074

Abstract

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Comprehensive understanding of the spatial characteristics of tropical cyclone (TC) precipitation is essential for effective socioeconomic planning and scientific research. The present study examines the spatial asymmetry in TC precipitation over the western North Pacific (WNP) concerning various factors, including latitudes, sea surface temperature (SST), TC intensity, and translation speed, based on satellite observations. The results reveal a significant poleward migration of TC precipitation asymmetry particularly above 15° N. Furthermore, the asymmetry exhibits considerable sensitivity to changes in TC center latitudes and SSTs, characterized by anticlockwise and northeastward migration, respectively. The poleward migration of TC precipitation spatial asymmetry is primarily due to the poleward decreasing SST, increasing vertical wind shear and increasing TC translation speed. These findings contribute to a comprehensive understanding of TC behavior over the WNP and provide valuable insights for disaster preparedness and mitigation efforts.

Published in Atmosphere

ISSN: 2073-4433 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Physics: Meteorology. Climatology
Website: http://www.mdpi.com/journal/atmosphere/

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