With the numerical simulated data of the storm, the structure and evolution of the helicity, superhelicity and their dynamical influences on the development of the storm are investigated.
原有对流单体在原地维持成熟的结构,表现出较强的稳定性,而裂出的新单体在移
过程中,逐渐向成熟位相发展,并且又
裂出新的单体。