Analysis of Dalian"Matsa"rainstorm
Annotatsiya
Matsa(Tropical Storm 0509) went northward and caused a strong rainstorm to the Dalian.In this article,the environment air flow,the feature of path and the physical fields in the affected area is analyzed to study the characeristic of theMatsarainstorm.Results showed that the steady subtropical high and coupling of non-latitude high-low tropospheric jets transfered ample vapor from Southeastern Pacific surface to the Dalian area,and made favorable conditions for the northward moving of Matsa.During the period,however,Matsa did not acquire baroclinicity energy from mid-latitude westerly trough and its transformation intensification were not enhanced.Meanwhile,based on the data from satellites and dopler radar,the meso-micro scale systems of Matsais analyzed,revealing that it was the two meso-β systems induced the strong rainstorm in the Dalian area.Matsarainstorm located at the northeast side of the typhoon.