Diagnosis on the heavy precipitation of typhoon Lekima

doi:10.13878/j.cnki.jnuist.2020.04.006

2025-5-31- 9

Home > Archive>Volume 12, Issue 4, 2020 >450-459. DOI:10.13878/j.cnki.jnuist.2020.04.006

Diagnosis on the heavy precipitation of typhoon Lekima
DOI:
                        10.13878/j.cnki.jnuist.2020.04.006
                    
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                        TAN ZhenTAN Zhen
Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang 524088;South China Sea Institute of Marine Meteorology, Guangdong Ocean University, Zhanjiang 524088;College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang 524088
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LIANG MeiLIANG Mei
Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang 524088;South China Sea Institute of Marine Meteorology, Guangdong Ocean University, Zhanjiang 524088;College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang 524088
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XUE YufengXUE Yufeng
Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang 524088;South China Sea Institute of Marine Meteorology, Guangdong Ocean University, Zhanjiang 524088;College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang 524088
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XU JianjunXU Jianjun
Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang 524088;South China Sea Institute of Marine Meteorology, Guangdong Ocean University, Zhanjiang 524088;College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang 524088
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XU FengXU Feng
Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang 524088;South China Sea Institute of Marine Meteorology, Guangdong Ocean University, Zhanjiang 524088;Technology Department, Guangdong Ocean University, Zhanjiang 524088
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Abstract:

Based on rainfall data from Tropical Rainfall Measuring Mission (TRMM) satellite,and data such as potential height,wind speed,and vertical speed from the Modern Era Retrospective-analysis for Research and Applications version 2 (MERRA-2) satellite,the moving path of typhoon 1909 (Lekima) and its rainstorm in Zhejiang,Jiangsu and Shandong provinces are analyzed.It is found that Lekima is a northward typhoon,and its moving path is mainly affected by the subtropical anticyclone and typhoon 1910 (Krosa).During its moving north,the typhoon inverted trough and the cold air in westerly trough cooperated and caused a large amount of unstable energy,which result in heavy precipitation.In addition,the low-altitude jet stream and the westerly trough provide favorable dynamic rising conditions for precipitation.The southwest monsoon and typhoon Krosa,as sources of water vapor and energy for typhoon Lekima,provide abundant water vapor for the rainstorm.

Key words:typhoon Lekima;typhoon precipitation;northward typhoon;westerly trough

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TAN Zhen, LIANG Mei, XUE Yufeng, XU Jianjun, XU Feng. Diagnosis on the heavy precipitation of typhoon Lekima[J]. Journal of Nanjing University of Information Science & Technology,2020,12(4):450-459

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Received:May 06,2020
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Online: July 31,2020
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