摘要
本文主要利用NECP时间间隔为6h的1°X 1°再分析资料来分析2010年7月16～18日发生在巴中市持续性暴雨的成因及特点。通过分析发现副热带高压和台风"康森"对低值系统起了阻塞作用,低空急流和西南低涡是本次暴雨的主要影响系统,水汽通量散度、湿层厚度、垂直速度、低层涡度和假相当位温等物理因子在此次暴雨过程中表现的很明显,是预报持续性暴雨的很好手段。
By using NECP 10×10 re-analysis data numerical to analyze a continual rainstorm process in Bazhong city from July 16 to 18,2010,the results show that the subtropical high and the kangsen play the choking action to the low value system,the mutagenesis of rainstorm are the jet flow and the southwest vortex.The moisture flux divergence,relative humidity thickness,vertical velocity,underlying bed vorticity,preudo-equivalent potential temperature and so on physical factors display in this rainstorm process are very obvious,they are the very good method for forecasting the long-enduring rainstorm.
出处
《高原山地气象研究》
2011年第3期43-48,共6页
Plateau and Mountain Meteorology Research
关键词
暴雨
西南低涡
副热带高压
急流
rainstorm
southwest
the subtropical high
jet flow
