Superhelicity is negative in the initial developing process of storm however the superhelicity is positive in the mature stage of storm.
英
美
- 在对流风暴发展阶段,超螺旋度为负值,对流单体的结构螺旋性增强、螺旋度的增大,在风暴到达成熟阶段后,超螺旋度转为正值。