螺旋云带

接着，再次利用了上一部分的分割结果，并结合原图像提取出了台风的螺旋云带；

And then , using the result of segmentation and original image extracted spiral band of typhoon ;

台风螺旋云带骨架跟踪方法的研究

The Study on Automatic Tracking Method of Typhoon Spiral Cloud Bands

卫星图像上台风螺旋云带精细结构分析

Analysis on fine structures of typhoon spiral cloud bands on the satellite images

台风中螺旋云带的线性理论

The linear theory of spiral cloud bands of Typhoon

螺旋云带的变化通常是台风未来移动及其强度变化的强信号。

The variation of spiral cloud band is often a strong signal to the variation of typhoon 's intensity and motion .

螺旋云带顶部的最低温度。经曲线拟合，得到云强度指数与台风中心附近最大风速的关系。

The relationship between cloud intensity indices and maximum wind velocity near the center of tropical cyclone is also derived from curve fitting .

台风外围的稳定度具有明显的波动性，强对流在台风外围螺旋云带末端的高温、不稳定和相对高湿舌发生；

The convection developed on an instable tongue with higher temperature and higher humidity that joint with the end of an exterior spiral cloud band of Typhoon Rananim .

近海台风中大暴雨常常产生于台风东侧的螺旋云带区，大暴雨是与低层周期为6&10小时以及2-3小时的中尺度气压波动相联系。

The heavy rain occurring in a costal typhoon is often located at the spiral cloud band in the east part of the typhoon and is closely associated with the mesoscale pressure waves with the periods 6-10 h and 2 ? in the lower atmosphere .

台风螺旋云（雨）带与切变线

Typhoon spiral cloud bands and shear lines

最后，利用拟合对数螺旋线来拟合台风的螺旋云带，确定螺旋线的中心位置即为台风的中心位置。

At last , fit helix to find out the position of typhonic center .