It shows that a gust front is associated with the line or arc shape echo in the reflectivity products, and convergence line in the velocity products, and the damage wind near the surface.

• 结果表明：阵风锋在雷达反射率因子图上表现为强对流回波前方近地层的条状或弧状弱窄带回波；在径向速度图上表现为风向、风速急剧变化的辐合带区域；