贵州中部冰雹的双偏振雷达参量特征与识别
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摘要
选取2017年4月16日修文县冰雹天气过程,分别利用Micaps资料和贵阳探空资料分析了当天的天气背景、水汽的垂直分布特征和不稳定能量的存在,通过分析双偏振雷达对降雹过程的外场观测资料,得到了各种偏振参量的特征,同时分别用多普勒雷达和双偏振雷达进行了冰雹识别,结果表明,双偏振雷达在相态识别方面有一定的优势。
The environmental condition, vertical distribution of water vapor and the existence of unstable energy of the hailstorm process which occurred in Xiuwen county on April 6, 2017(based on midcaps data) were analyzed. The characteristics of various polarization parameters were obtained by analyzing the field observation data of dual-polarization radar on hail process. At the same time,Doppler radar and dual-polarization radar are used to detect hail respectively. The results show that the dual-polarization radar has certain advantages in hydrometeor classification.
The environmental condition, vertical distribution of water vapor and the existence of unstable energy of the hailstorm process which occurred in Xiuwen county on April 6, 2017(based on midcaps data) were analyzed. The characteristics of various polarization parameters were obtained by analyzing the field observation data of dual-polarization radar on hail process. At the same time,Doppler radar and dual-polarization radar are used to detect hail respectively. The results show that the dual-polarization radar has certain advantages in hydrometeor classification.
引文
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[2]张鸿发,郄秀书,王致君,等.偏振雷达观测强对流雹暴云[J].大气科学,2001,25(1):39-47.
[3]刘黎平.双线偏振多普勒天气雷达估测混合区降雨和降雹方法的理论研究[J].大气科学,2002,26(6):761-772.
[4]王致君,楚荣忠.偏振雷达在人工影响天气工作中的应用潜力[J].高原气象 ,2002,21(6):591-598.
[5]刘亚男,肖辉,姚振东,等.X波段双极化雷达对云中水凝物粒子的相态识别[J].气候与环境研究,2012,17(6):925-936.