气象2016,Vol.42Issue(10):1184-1196,13.DOI:10.7519/j.issn.1000-0526.2016.10.003
“8·23-24”上海远距离台风大暴雨影响分析
Analysis on a Tropical Cyclone Remote Rain Event in Shanghai in 23-24 August 2015
摘要
Abstract
Based on routine weather data,meteorological elements fields,wind profiler radar data,satellite cloud images and operational numerical forecast data,we have analyzed a heavy rain event that occurred in Shanghai in 23-24 August 2015.The results show that it was caused by combined action of a remote trop-ical cyclone Goni and cool air spreading southwards from north area;the circulation of Goni provided the plentiful supply of water vapor and energy required for the event;and the convergence of cool wind and strong easterly jet enhanced vertical motion of moisture air.Verification indicates that there are remarkable bias in rain hit areas,intensity and timing for most operational numerical forecast,which possibly come from the errors in calculation of TC position,strength and location of easterly jet around TC and strength of cool air,etc.Under such situation we should devote much attention to the application of real time ob-servation with the aim of issuing available short term early warning of heavy rain.关键词
远距离台风/大暴雨/环流背景/水汽热力条件/模式预报分析/台风天鹅Key words
remote typhoon/extremely heavy rain/circulation background/water vapor and thermal con-dition/numerical forecast analysis/tropical cyclone Goni分类
天文与地球科学引用本文复制引用
曹晓岗,王慧..“8·23-24”上海远距离台风大暴雨影响分析[J].气象,2016,42(10):1184-1196,13.基金项目
公益性行业(气象)科研专项(GYHY201306010和GYHY201306030)共同资助 ()