| 台风狮子山与中纬度系统相互作用所致暴雨成因分析 |
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| 引用本文： | 任丽,赵玲,韩冰,张月.台风狮子山与中纬度系统相互作用所致暴雨成因分析[J].新疆气象,2019,13(1):44-51. |
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| 作者姓名： | 任丽 赵玲 韩冰 张月 |
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| 作者单位： | 黑龙江省气象台;绥化市气象局 |
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| 基金项目： | 黑龙江省龙云气象科技有限责任公司气象院士工作站（YSZD201702）资助 |
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| 摘 要： | 使用常规观测资料和NCEP FNL的1.0°×1.0°气象再分析资料,对2016年第10号(简称1610号)台风"狮子山"北上与中纬度系统相互作用在中国东北地区引发暴雨过程进行追踪和诊断分析,探究此次暴雨天气发生、发展的动力学、热力学和不稳定机制。分析结果表明:东北地区的强降水先后由西风带低涡和台风"狮子山"2个系统活动造成。在2个气旋逐渐接近过程中,台风东北侧的东南急流把海上的热量和水汽向低涡环流输送,在倒槽切变处辐合抬升,产生暴雨。大暴雨区位于倾斜锋区附近,对流稳定,中层存在湿对称不稳定,有利于加强降水强度。东北地区东部处于高空急流核右后方和低空急流核前方,高、低空急流耦合的区域,使高层强辐散和低层强辐合叠置,加强了暴雨区的上升运动,从而加强了降水强度。地形对暴雨有增幅作用。
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| 关 键 词： | 台风 低涡 湿位涡 地形 |
| 收稿时间： | 2017/12/25 0:00:00 |
| 修稿时间： | 2018/3/15 0:00:00 |
The Analysis of Rainstorm Caused by the Interaction between Mid-Latitude System and Typhoon(1610) Lionrock |
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| REN Li,ZHAO Ling,Han Bing and Zhang Yue.The Analysis of Rainstorm Caused by the Interaction between Mid-Latitude System and Typhoon(1610) Lionrock[J].Bimonthly of Xinjiang Meteorology,2019,13(1):44-51. |
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| Authors: | REN Li ZHAO Ling Han Bing and Zhang Yue |
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| Institution: | Meteorological Observatory of HeiLongJiang Province,Harbin Heilongjiang 150030,Meteorological Observatory of HeiLongJiang Province,Harbin Heilongjiang 150030,Meteorological Observatory of HeiLongJiang Province,Harbin Heilongjiang 150030,Meteorological Observatory of HeiLongJiang Province,Harbin Heilongjiang 150030 |
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| Abstract: | Based on the conventional observational data and NCEP 1°x1° final reanalysis data, the dynamics, thermodynamics and unstable mechanism of the occurrence and development of the rainstorm which was triggered by the interaction between the typhoon Lionrock moving north and mid-latitude system in Northeast China were analyzed. The major conclusions were as follow: the heavy precipitation in Northeast China had been caused by the low vortexes of the westerly wind belt and the typhoon Lionrock. During the gradual approach of the two cyclones, the southeast jet on the northeast side of the typhoon sent the heat and water vapor to the low eddy circulation. The water vapor in the chamfering section of the chamfer is raised, resulting in heavy rain. In the inverted trough shear, the forced lifting of air stream caused heavy rain. The heavy rain was located near the inclined front area which was convective stability and moist symmetry instability in the middle layer. Such a configuration was conducive to strengthening precipitation intensity. The eastern part of the Northeast was located on the right rear of the upper jet nuclear and he left front of the low jet nuclear. The coupling of high-low jet induced high divergence area overlaying on the top of low convergence area, which consequently leaded intense ascending movement and strengthened the precipitation intensity. Terrain had an increasing effect on rainstorm. |
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| Keywords: | typhoon Vortex moist potential vorticity topography |
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