The analyses suggest that the first and second categories of rainstorms are associated commonly with the strong inertial instability in the upper troposphere, as well as respectively with symmetry and convective instabilities, and their rainfall is large;
The analyses suggest that the first and second categories of rainstorms are associated commonly with the strong inertial instability in the upper troposphere, as well as respectively with symmetry and convective instabilities, and their rainfall is large;
分析湿位涡与梅雨暴雨中的惯性不稳定、对称不稳定、对流不稳定的关系发现：第1类暴雨往往与对称不稳定有关，第2类暴雨与对流不稳定有关，且这两类暴雨高层多具有强惯性不稳定，降水相对较大；第3、第4类暴雨是稳定性降雨，高层一般不具备惯性不稳定，雨量一般较小。