摘要
For a long time, the precipitation prediction has been a difficult problem, one of the primary reasons is that the mesoscale trigger mechanism of precipitation has not been fully known. In this paper, by data of the 325-m meteorological tower, acoustic sounder and common meteorological observations, the trigger process consisting of two strong precipitations in Beijing area from 2 : 30 to 4 : 30, August 27, 1980, was analysed.
