一次中尺度对流复合体的分析

AN ANALYSIS OF MESOSCALE CONVECTiVE COMPLEX

本文对一九八九年六月六日十九时至七日十时的一次Mcc过程进行了分析。结果表明,这次Mcc的产生是由于β中尺度对流云团的合并而造成的;它是沿着850hPa切变线南侧2个纬距内向东移动的;它的东北方新生的对流云团促使了Mcc的消亡并产生了强降水天气现象。

This article contains the analysis of one MCC process from 19 : 00 in June 6, 1989 to 10 : 00 of next day. The result shows that the happening of MCC is because of the combination of beta meso-scale convective cloud clusters. It moved eastwards within the distance btween two latitude lines along the southern side of the shear line at 850 hPa level. The new convective cloud cluster in the northeast caused the MCC to disappear and to arise a severe rainfall weather.