The convergenceline caused by sea-land breeze and the topographic forcing effect are the main mechanism that triggers the low-trough type hail in Hainan.
海陆风辐合和地形抬升是海南低槽类冰雹发生的主要触发机制。
2
The rain storm activities relate to the mesosynoptic systems such as the mesoscale shear line, the mesoscale convergenceline and the mesoscale convergence center.
雨团活动与中尺度切交线、辐合中心、辐合线等中尺度天气系统相配合。
3
The more wind fields is complex, for example the middle-scale convergenceline, the bigger is the difference of the retrieved wind direction and speed between with two methods.