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.
原有单体在原地维持成熟
结构,表现出较强
稳定性,而分裂出
新单体在移动过程中,
成熟位相发展,并且又分裂出新
单体。