Mechanism of heavy rainfall maintenance and increment in convergence excited by coupling forces between dynamic and thermodynamic fields

摘要: According to the occurrence and maintenance of torrential rain relating closely moisture convergence increment in low layer troposphere, factors affecting evolution divergence is analysed reveal dynamic mechanism heavy rainfall maintenance. Starting from primitive equations, we obtain a new type equation including coupling forces between Q vector vertical shear wind. Analysis on this brings light main influence divergence. They are separately barotropic non-equilibrium force baroclinic Especially, only controlled by above-mentioned two with maximum . In addition, definite integral for formed earth’s surface un-divergent level. Results show that self-exciting process fields lead decrease troposphere. Oppositely, wind promote air column, which should pay more attention studying