The Propagation and Development of Cloud Cluster Systems and Severe Precipitation Event in 1998
不同尺度云团系统上下游的传播与1998年长江流域大暴雨

The propagation and development of cloud cluster systems are analyzed during heavy precipitation based on satellite and radar data. The results show that the re-built of the large-scale transport belt about heat and moisture or the propagation of the low vortex were the most important condition for the occurrence of this event, there are three models of propagation, i.e., latitude type, southwest type and mixed type. The continuous development of the meso-scale convective systems (MCS) is a key factor of the formation of the strongest precipitation center.