2015年9月初塔里木盆地西部一次强对流性天气的成因分析  

The Cause Analysis of a Strong Convective Wea-ther in the Western Tarim Basin in Early September 2015

作　　者：买买提江·赛提尼牙孜 玛依拉·麦麦提 曼吾拉·卡德尔 MAIMAITIJIANG Saitiniyazi(Xin jiang Airport(Group)Co.,Ltd.,Urumqi,Xinjiang 83000)

机构地区：[1]新疆机场(集团)有限责任公司,新疆乌鲁木齐830000 [2]新疆机场集团公司和田机场,新疆乌鲁木齐848000

出　　处：《农业灾害研究》2021年第4期40-41,共2页Journal of Agricultural Catastrophology

摘　　要：利用地面观测资料、台站观测资料和NCEP再分析资料,对2015年9月初塔里木盆地西部的一次强对流天气成因进行分析。结果表明:塔里木盆地西部的强对流天气主要表现为短时强降水,是不同天气尺度系统共同作用产生的;前期出现了持续性的降水条件,为强对流天气的出现提供了较好的水汽条件;下垫面气温的下降,边界层冷气流与暖气流交汇后会有强烈的上升运动出现,直接导致塔里木盆地西部上空快速释放出大量的不稳定能量,同冰雹落区保持一致,之后的CAPE值则明显降低;在强对流天气发展演变中,逆风区移动速度较慢,且维持较长时间,同短时强降水和冰雹天气的出现有很好的对应关系。This paper analyzes the causes of a strong convective weather in the Western Tarim Basin in early September 2015 by using the ground observation data,station observation data and NCEP reanalysis data.The results show that the strong convective weather in the Western Tarim Basin is mainly characterized by short-term strong precipitation,which is caused by the interaction of the weather scale with the medium and small scale weather system;The continuous precipitation conditions appeared in the early stage,which provided better water vapor conditions for the occurrence of strong convection weather;The temperature of the underlying surface decreases,and there will be a strong upward movement after the boundary layer cold air flow and heating flow meet,which directly leads to the rapid release of a large amount of unstable energy over the Western Tarim Basin,which is consistent with the hailstorm falling area,and then the cap value decreases obviously;In the development and evolution of strong convection,the velocity of the reverse wind is slow and the time is maintained for a long time,which is closely related to the emergence of short-term heavy precipitation and hail weather.

关 键 词：强对流性天气 环流形势 多普勒雷达 塔里木盆地 

分 类 号：P42[天文地球—大气科学及气象学]