利用天气雷达回波资料识别雹云的统计学方法

A STATISTIC APPROACH TO HAIL CLOUD DISCRIMINATION WITH WEATHER RADAR DATA

摘要:

本文利用江苏省天气雷达回波资料建立多元和逐步回归方程。并对所用几个多元回归和逐步回归方程来识别雹云的准确性进行了比较。还利用同一省不同地区的1985年新资料和上海、宁波两市1979—1984年资料对这些方程的适用范围进行了检验。结果表明方程(6)可以在江苏本省各雷达站试验使用,其效果较理想,但在邻近省、市使用时要慎重。

Abstract:

Multiple and stepwise equations are established with weather radar data in Jiangsu province. Comparison is made between the equations used for the accuracy of distinguishing hail clouds from others. Test of these equations with newly-collected data (1985) at other locations in Jiangsu and data (1979-198t) in cities of its adjacent provinces shows that the seequations can be used at radar stations in Jiangsu with rather good results. However, care should be taken when they are used for hail cloud discrimination in the adjacent provinces.