风场扰动对降雨微结构的影响分析

摘要

研究了扰动对降雨微结构的影响。分析了风场扰动下的雨滴下落速度分布。仿真分析了不同扰动强度下的多普勒极化谱,对风场扰动对多普勒极化雷达观测结果的影响进行了分析和讨论。风场扰动的研究为进一步理解降雨微结构特性和动态特性打下了基础,并为下一代降雨多普勒极化雷达系统参数的选择和优化提供了理论依据。%This paper studies perturbation in the precipitation microstructure.The main work here includes three aspects.First,raindrops velocity distribution under wind perturbation is shown.Then,simulation results of doppler-polarimetric spectrum with different intensity of turbulence are demonstrated.Furthermore,the relationship between the simulated doppler-polarimetric parameters and turbulence intensity is analyzed.The simulating results exhibited in this paper will give a help to understand turbulized meteorological objects.