气旋快速发展过程中潜热释放重要性的位涡反演诊断

POTENTIAL VORTICITY INVERTIBILITY DIAGNATIC ABOUT THE IMPORTANCE OF LATENT HEAT IN THE CYCLONE RAPID DEVELOPMENT PROCESS

本文分析了一次爆发性气旋过程中的位涡演变特征，揭示了凝结潜热释放对气旋人上工位涡柱形成所起的作用；通过数值求解位涡反演诊断方程定量诊断出气旋爆发性发展阶段，凝结潜热释放对低层降压和气旋式环流增强的重要影响。

This paper analyses the PV features of an explosive cyclone and reveals theaction of latent heat to form the PV column;PV invertibility diagnostic equations can'be usedto quantitatively show the important effects of latent heat to the fall of pressure and thestrenthening of cyclonic circulation on low level during the cyclone explosive developmentphase.