“5·19”龙岩市北部局域大暴雨天气过程分析  

Analysis on the process of heavy rainstorm on May 19th in northern Longyan

作　　者：邱光敏 QIU Guang-min(Wuping Meteorological Bureau, Wuping, Fujian, 364300, Chin)

机构地区：[1]武平县气象局,福建武平364300

出　　处：《闽西职业技术学院学报》2017年第2期116-120,共5页Journal of Minxi Vocational and Technical College

摘　　要：利用探空、多普勒天气雷达、区域自动站等资料,对2015年5月19日龙岩市北部部分乡镇出现的大暴雨天气过程进行分析。结果表明,此次过程中大气层结处于不稳定状态,良好的水汽输送条件和维持较好的垂直上升运动条件以及地形抬升作用,为大暴雨的发生发展提供了必要的能量、水汽和动力抬升条件;地面冷锋维持少动、低层低涡切变靠近和江南及华南西南急流加强并稳定维持在福建西部境内,强降水持续时间长是造成大暴雨天气的主要原因。Based on the sounding data, Doppler weather radar, regional automatic station data, the heavy rainstorm weather process on May 19, 2015 in some villages and towns of northern Longyan were analyzed. The results showed that the process of stratification was in an unstable state, good water vapor transportation and maintaining good conditions of vertical ascending motion and terrain uplifting provided necessary energy, water and power lifting conditions for the occurrence and development of the heavy rainstorm; less dynamic of ground cold front, low vortex shear near the southern China and southwest China that strengthened and remained stable in western Fujian, and long duration of heavy rainfall all led to the heavy rainstorm.

关 键 词：大暴雨 天气系统 水汽条件 动力条件 层结稳定度 雷达降水回波 龙岩市 

分 类 号：P426.62[天文地球—大气科学及气象学]