气象研究与应用2018，Vol.39Issue(1)：33-37,45,6.
2015年11月广西秋季连续性暴雨研究
Study on continuous autumn heavy rain in Guangxi in November 2015
摘要
Abstract
Using the information of NCEP1×1, 2.5×2.5 and conventional observation data, a process of continuous heavy rainfall occurred in autumn in Guangxi on 7 -13 November 2015 was analyzed. The heavy rainfall in early and late periods was caused by two low-altitude shear lines and cold air; in the middle period, the reason was the east movement of the plateau trough and convergence which was induced by the increasing south wind after a north lift of the shear line. On November 8, the shear line only moved to northern Guangxi due to strong Subtropical High. On 12, the shear line southward to southern Guangxi after the subtropical high retreated to coastal areas, inducing a wider range of heavy rainfall. Through the analysis of potential tendency equation, we found that the two southern retreats occurred in the northern boundary of the subtropical high because of the positive vorticity advection in the front of the trough and a cold advection decreasing with height. The function of frontogenesis and pseudo-equivalent potential temperature can be used to predict the future frontal trend and forecast the falling area of heavy rainfall.关键词
秋季连续性暴雨/副高/锋生函数Key words
heavy rain in autumn/the subtropical high/frontogenesis function分类
天文与地球科学引用本文复制引用
黄翠银,赖雨薇,陈剑飞..2015年11月广西秋季连续性暴雨研究[J].气象研究与应用,2018,39(1):33-37,45,6.基金项目
中国气象局预报员专项项目(CMAYBY2016-053). （CMAYBY2016-053）
