摘要
Potential vorticity (PV) has been served as a powerful and useful dynamic tracer for the understanding of the large-scale dynamics and synoptic variations in the atmosphere and oceans.Significant progress has been made on the application of PV.In recent decades there has been a substantial amount of work done on PV in a gen-eral moist atmosphere.In this paper PV and the general-ized moist potential vorticity (GMPV) and their applica-tion in the tropical cyclones and mesoscale meteorologi-cal field are reviewed.The GMPV is derived for a real atmosphere (neither totally dry nor saturated) by intro-ducing a generalized potential temperature instead of the potential temperature or equivalent potential temperature.Such a generalization can depict the moist effect on PV anomaly in the non-uniformly saturated atmosphere.A new convective vorticity vector (CVV) is introduced in connection with GMPV in order to diagnose the devel-opment of tropical deep convections.
Potential vorticity (PV) has been served as a powerful and useful dynamic tracer for the understanding of the large-scale dynamics and synoptic variations in the atmosphere and oceans.Significant progress has been made on the application of PV.In recent decades there has been a substantial amount of work done on PV in a gen-eral moist atmosphere.In this paper PV and the general-ized moist potential vorticity (GMPV) and their applica-tion in the tropical cyclones and mesoscale meteorologi-cal field are reviewed.The GMPV is derived for a real atmosphere (neither totally dry nor saturated) by intro-ducing a generalized potential temperature instead of the potential temperature or equivalent potential temperature.Such a generalization can depict the moist effect on PV anomaly in the non-uniformly saturated atmosphere.A new convective vorticity vector (CVV) is introduced in connection with GMPV in order to diagnose the devel-opment of tropical deep convections.
