| 1909号超强台风“利奇马”强降水特征的诊断 |
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| 引用本文： | 谭震,梁梅,薛宇峰,徐建军,徐峰.1909号超强台风“利奇马”强降水特征的诊断[J].南京气象学院学报,2020,12(4):450-459. |
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| 作者姓名： | 谭震 梁梅 薛宇峰 徐建军 徐峰 |
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| 作者单位： | 南方海洋科学与工程广东省实验室, 湛江, 524088;广东海洋大学 南海海洋气象研究院, 湛江, 524088;广东海洋大学 海洋与气象学院, 湛江, 524088,南方海洋科学与工程广东省实验室, 湛江, 524088;广东海洋大学 南海海洋气象研究院, 湛江, 524088;广东海洋大学 海洋与气象学院, 湛江, 524088,南方海洋科学与工程广东省实验室, 湛江, 524088;广东海洋大学 南海海洋气象研究院, 湛江, 524088;广东海洋大学 海洋与气象学院, 湛江, 524088,南方海洋科学与工程广东省实验室, 湛江, 524088;广东海洋大学 南海海洋气象研究院, 湛江, 524088;广东海洋大学 海洋与气象学院, 湛江, 524088,南方海洋科学与工程广东省实验室, 湛江, 524088;广东海洋大学 南海海洋气象研究院, 湛江, 524088;广东海洋大学 科技处, 湛江, 524088 |
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| 基金项目： | 南方海洋科学与工程广东省实验室（湛江）资助项目（ZJW-2019-08）;中国科学院战略性先导科技专项（XDA20060503）;广东省基础与应用基础研究基金（2019B1515120018）;广东省普通高校青年创新人才项目（2016KQNCX061）;国家重点研发计划（2018YFC1506902）;广东海洋大学"冲一流"学科建设科研项目（231419022）;海洋与气候变化人才培养和创新团队（002026002002） |
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| 摘 要： | 基于TRMM卫星降雨资料、MERRA-2卫星位势高度、风速、垂直速度等资料,对1909号台风"利奇马"的移动特征及其引发浙江、江苏、山东等地暴雨进行诊断分析.分析结果发现,台风"利奇马"是北上型台风,移动路径主要受副高与1910号台风"罗莎"等系统影响.在北上的过程中,由于台风倒槽与西风槽携带的冷空气配合,且存在大量不稳定能量,引发了此次强降水过程.此外,低空急流及西风槽为降水提供了良好的动力上升条件,南海西南季风与台风"罗莎"是台风"利奇马"充沛的水汽与能量来源,为暴雨提供了良好的水汽条件.
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| 关 键 词： | “利奇马”台风 台风降雨 北上台风 西风槽 |
| 收稿时间： | 2020/5/6 0:00:00 |
Diagnosis on the heavy precipitation of typhoon Lekima |
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| TAN Zhen,LIANG Mei,XUE Yufeng,XU Jianjun and XU Feng.Diagnosis on the heavy precipitation of typhoon Lekima[J].Journal of Nanjing Institute of Meteorology,2020,12(4):450-459. |
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| Authors: | TAN Zhen LIANG Mei XUE Yufeng XU Jianjun and XU Feng |
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| Institution: | 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,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,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,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 and 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. |
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| Keywords: | typhoon Lekima typhoon precipitation northward typhoon westerly trough |
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