The result indicates that the underestimation of the rainfall rate during heavy rain and the overestimation during light rain become small by ZDR method.
The relationship between ZH and ZDR, and KDP is not sensitive to the variations of DSD, which could be used in distinguishing the solid precipitation from rain.
同时给出的ZH与ZDR和KDP关系公式也基本不受雨滴谱变化的影响，它可以用于降水粒子相态的识别。
3
There is a linear relationship between differential reflectivity ZDR and the shape factor defined as the ratio of the horizontal scale to the vertical scale of a particle.