El Niño Onset Time Affects the Intensity of Landfalling Tropical Cyclones in China
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Published:2023-03-26
Issue:4
Volume:14
Page:628
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ISSN:2073-4433
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Container-title:Atmosphere
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language:en
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Short-container-title:Atmosphere
Author:
Yang Jinyi12, Xu Feng12, Tu Shifei2ORCID, Han Liguo12, Zhang Shaojing12, Zheng Meiying12, Li Yongchi12, Zhang Shihan12, Wan Yishun12
Affiliation:
1. College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang 524088, China 2. China Meteorological Administration-Guangdong Ocean University (CMA-GDOU) Joint Laboratory for Marine Meteorology, South China Sea Institute of Marine Meteorology, Guangdong Ocean University, Zhanjiang 524088, China
Abstract
In this work, we studied the influence of spring (SP) and summer (SU) El Niño events on the landfalling tropical cyclones (TCs) in China. The results showed that compared to SU El Niño years, the average latitude of the landfalling TCs in SP El Niño years shifted significantly southward and that the average TC intensity was significantly stronger, especially in the post-landfall period. Additionally, more severe tropical storm-level TCs generated over the South China Sea made landfall in China. Meanwhile, in SP El Niño years, landfalling TCs in southern China had a greater landfall intensity, but landfalling TCs in eastern China were the opposite. These changes in TC intensity during the SP El Niño years could be attributed to more favorable dynamical and thermodynamical conditions, which are beneficial for maintaining TC intensity and duration after landfall. These results could have important implications for an in-depth understanding of TC activities, as well as TC disaster prevention and mitigation.
Funder
Key Areas Research and Development Program Project of Guangdong Province National Key Research and Development Program Project of China National Natural Science Foundation of China
Subject
Atmospheric Science,Environmental Science (miscellaneous)
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