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应用物理全诊断方法分析了1998年主汛期清江流域4次致洪暴雨成因。结果表明，4次致洪暴雨均为500hPa青藏高原低槽沿副高西北外围东移过程与中低层低涡切变线配合所造成；而各次暴雨前，该流域中尺度辐合系统及物理量场基本一致，这对暴雨发生起了主导作用。
The causes of four heavy rainstorms caused by the Qingjiang River in the main flood season in 1998 were analyzed using the method of full physical diagnosis. The results show that the four flood-induced heavy rains are all caused by the 500 hPa Tibetan Plateau low trough migration along the outer periphery of the northwestern subtropical high and the low-middle shear vortex shear line. Before each heavy rainfall, the mesoscale convergence systems and physical quantities Field basically the same, which played a leading role in the storm.