摘要
利用常规气象观测资料对2008年7月23日发生在山东省日照市的大暴雨天气过程进行了综合诊断分析,结果表明:低涡切变及地面气旋是此次日照大暴雨的主要影响系统;低层辐合和高层辐散为此次过程提供了有利的抬升条件;高空西南气流和低层偏东气流为大暴雨提供了丰富的水汽;潜在不稳定能量和强烈的垂直运动等因素的共同影响,也是此次大暴雨天气过程形成的重要因素。
The heavy rainstorm process, which occurred in Rizhao city of Shandong province on July 23, 2008 is comprehensively analyzed by using conventional meteorological observational data. The result shows the low vortex shear and surface cyclone are the main influence system of the heavy rainfall; the low-lever convergence and upper-lever divergence provided the favorable uplift condition; the upper-lever southwest air current and low-lever eastern air current supplied the abundant vapor; and the potential unstable energy and ascending motion and so on were also important factors of the heavy rainfall.
出处
《气象与环境科学》
2009年第B09期37-41,共5页
Meteorological and Environmental Sciences
关键词
大暴雨
成因分析
天气形势
物理量场
heavy rainstorm
origin analysis
synoptic situation
physieal field
