The phenomena of initial disturbance vorticity translating into spiral bands is most evidently for it locating at the periphery of Radius of Maximum Wind(RMW), near RMW next and the spiral bands vanish when it is positioned in the inner core region.

• 初始圆形扰动涡度场转化为螺旋臂涡量带的现象是初始扰动位于涡旋最大风速半径(RMW)外围最显著，其次是RMW附近，当扰动位于涡旋内核区时几乎没有螺旋臂结构形态出现，表明，初始扰动离TC中心越远，其强迫涡旋Rossby波形成的螺旋带结构越明显，反之越弱。