| Mangkhut（1822）台风飑线在江西的影响过程分析 |
| |
| 引用本文： | 孙素琴,刘文英,刘春,毛连海.Mangkhut（1822）台风飑线在江西的影响过程分析[J].气象与减灾研究,2021,44(1):9-15. |
| |
| 作者姓名： | 孙素琴 刘文英 刘春 毛连海 |
| |
| 作者单位： | 江西省气象台,江西南昌 330096;江西省农业气象中心,江西南昌 330096 |
| |
| 基金项目： | 2020年江西省气象局重点项目(编号：JX2020Z09)；江西省气象局预报员专项“2018年疑难台风数值预报析用及机理研究”. |
| |
| 摘 要： | 主要利用常规气象资料和NCEP 1° ×1°再分析资料,对2018年22号超强台风Mangkhut在江西引发的飑线天气过程进行分析.结果表明:飑线在台风和副热带高压间的湿区生成,台风为此次飑线提供了有利条件.台风外围的低空急流输送充沛水汽,较强的对流有效位能和持久的地面辐合线使得初始离散对流单体组织发展成为台风飑线,而较强的低空垂直风切变为飑线的进一步发展提供了动力条件.江西省中南部中层入流环境及地面冷池等有利于雷暴大风的生成,江西省北部深厚的湿层和强烈的垂直上升运动等利于短时暴雨的发生.
|
| 关 键 词： | 台风飑线 短时暴雨 雷暴大风 成因 |
| 收稿时间： | 2020/11/20 0:00:00 |
| 修稿时间： | 2021/1/21 0:00:00 |
Study on the Influence Process of Mangkhut (1822 ) Typhoon Squall Line in Jiangxi Province |
| |
| Sun Suqin,Liu Wenying,Liu Chun and Mao Lianhai.Study on the Influence Process of Mangkhut (1822 ) Typhoon Squall Line in Jiangxi Province[J].Meteorology and Disaster Reduction Research,2021,44(1):9-15. |
| |
| Authors: | Sun Suqin Liu Wenying Liu Chun and Mao Lianhai |
| |
| Institution: | Jiangxi Meteorological Observatory,Jiangxi Agricultural Meteorological Center,Jiangxi Meteorological Observatory and Jiangxi Meteorological Observatory |
| |
| Abstract: | Based on the routine observational data, 1°×1° NCEP 6 h reanalysis data, the influence process of Mangknut (1822) typhoon squall line on 17 September, 2018 in Jiangxi province were analyzed. The results showed that this TC squall line formed in the moist transition zone between the parent TC and a subtropical high. It was found that Mangkhut may have contributed to convective development in the squall line by producing conditional instability and enhancing low level moisture convergence, leading to the organization of the early discrete convection into a linear rain band. The strong low level vertical wind shear in the vicinity of the TC squall line was favorable to the development of TC squall line. Thunderstorm in south central region of Jiangxi was caused by the middle level inflow and ground cold pool. The short term rainstorm in northern Jiangxi was caused by the deep high humidity layer and strong vertical ascending motion. |
| |
| Keywords: | squall line short time rainstorm thunderstorm gale formation cause |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《气象与减灾研究》浏览原始摘要信息 |
| 点击此处可从《气象与减灾研究》下载免费的PDF全文 |
