大气科学学报2012，Vol.35Issue(6)：746-753,8.
“6·18”江汉平原特大暴雨中尺度特征
Mesoscale characteristics of the torrential rain over the Jianghan Plain in Hubei Province on 18 June
摘要
Abstract
The NCEP GFS reanalysis data (resolution of 0.5° x 0. 5°) and surface observation and Doppler radar data were used to analyze the mesoscale systems of the torrential rain which occurred o ver the Jianghan Plain in Hubei on 18 June. Results show that the torrential rain was mainly caused by the deep low vortex over the Jianghan Plain, the dry line in the middle troposphereboundary layer and mesoscale low pressure on surface were the main trigger mechanism, and the southwest jet offered suffi cient vapor for the rain. After studying the radar echoes feature, it is found that the rain intensity was in good consistency with the vertical thickness of radar reflectivity factor above 45 dBz under 0℃ level and with the vertical integrated liquid value.关键词
特大暴雨/滤波/中尺度低涡/雷达回波/干线Key words
torrential rain/wave filtering/mesoscale vortex/radar echo/dry line分类
天文与地球科学引用本文复制引用
吴翠红,王珊珊..“6·18”江汉平原特大暴雨中尺度特征[J].大气科学学报,2012,35(6):746-753,8.基金项目
公益性行业（气象）科研专项（GYHY（QX）200906003） （）
