There are two parts in this paper:Firstly, a set of single Doppler velocity models are presented for typical ambient windfields that include those of being uniform horizontally, macroscale convergence and divergence, which overlap warm and cold advection.

• 第一篇通过对典型风场的单多普勒天气雷达径向速度图象进行模拟，典型风场包括水平均匀一致的风场、非均匀水平风场的大尺度运动的辐合辐散风场以及大尺度运动的辐合辐散风场与冷暖平流的迭加等。