“98·7”北京大暴雨的中尺度分析  

Mesoscale Analysis on Torrential Rain over Beijing Area in July,1998

作　　者：李廷福[1] 廖晓农[1] 俞连芬 

机构地区：[1]北京市气象台

出　　处：《气象》1999年第5期44-48,共5页Meteorological Monthly

摘　　要：对“９８７”北京大暴雨过程中的雨团、雷达回波、地面风场（流场）及气压场进行了分析。分析结果表明：大暴雨过程具有明显的中尺度特征，偏东风的中尺度切变线。The rain cluster,the radar echo,surface wind field (streamline field) and pressure field during torrential rain over Beijing area in July,1998 were analysed.The results show that there is an obvious mesoscale characteristic for torrential rain process.The mesoscale easterly shear line,the convergence line of wind velocity and the mesoscale depression system all played important role during the torrential rain events.

关 键 词：暴雨 雨团 中尺度分析 降水过程分析 北京 

分 类 号：P458.121.1[天文地球—大气科学及气象学]