摘要
通过对2009年05月19～20日和2009年06月02～03日两次高空槽影响过程的水汽通量散度和非地转湿Q矢量等物理量诊断分析表明,强降水过程从低层到500百帕都维持明显水汽输送作用,低层850百帕暴雨区上空有一个较强的▽.Q*负值区相对应。
Based on the diagnosis of the IFVQ and the Wet Q-vector from two eastward shift of upper trough on 19-20 May 2009 and 02-03 June 2009 respectively, it indicates that there are obvious vapor transport from lower layer to 500hPa during heavy rain. And there is a relatively strong △↓·Q negative value area above the torrential rain region at layer 850hPa.
出处
《气象研究与应用》
2010年第1期26-27,30,I0001,共4页
Journal of Meteorological Research and Application
关键词
两次高空槽
降水差异
Q矢量
诊断分析
Two eastward shift of upper-trough
Difference of precipitation
Q vector
Diagnosis
