摘要
本文对长江中下游地区边界层风场和逆温层分布进行了统计分析.发现在长江中下游地区边界层内有时存在着强风速带,其主要表现为东北和西南急流;边界层急流只有在西南气流时才常位于逆温层或等温层顶部;冷锋过境后常可看到一支位于锋面逆温下部的偏北强风速带并常伴随气旋或冷锋移动;
In the paper, the atatistics analyses of the inversion layer and the bounday layer jet over middle and lower reaches of the Changjang Valley have been made. The results show that the strong wind speed area at times exists in the, boundary layer over the middle and lower reaches of the Changjiang Valley and that most of the jet streams are northeastward and southwestward. The southwest jet stream often locates at the top of the inversion layer A northward strong wind speed belt often appears at the lower part of the cold front inversion and moves with cyclone and cold front while a cold front is passing through. The strong wind speed belt is related to the occurrence of heavy rain and severe convection.
出处
《杭州大学学报（自然科学版）》
CSCD
1990年第2期229-236,共8页
Journal of Hangzhou University Natural Science Edition
关键词
边界层
急流
逆温层
天气分析
weather analysis
boundary layer jet and temperatuer analysis
