【摘要】 本文分析了 1月份广东省冬季暴雨过程的高低层环流形势的配置特点 :2 0 0hPa西太平洋反气旋的西北侧和江南西南急流入口区南侧是强辐散场 ;5 0 0hPa副热带高压东移 ,西风槽逼近 ,槽前西南风增强 ;85 0hPa西南风和东南风两支气流汇合我省 ,增强低层辐合 ,中低层水汽量骤增 ;锋面再次过境。并且对 2 0 0 0年 1月 2 3～ 2 5日的暴雨过程从天气图、卫星云图、物理量等方面进行了具体分析更多还原

【Abstract】 We study the circulation features of a torrential rain process at different levels in Guangdong in January: The northwestern part of anticyclone over west Pacific and a strong divergent field at 200hPa in the south side of entrance of southwestly jet stream in central China;The subtropical high pressure moves eastward.The southwestly wind ahead of it is getting stronger when the westerly trough at 500hPa comes up to near Guangdong.At 850hPa,the southwestly wind and southeast wind converge in Guangdong.Thus the convergence became stronger and moisture content increased rapidly at low levels.Moreover we analyzed specifically the case from 23～25 January 2000.更多还原