我国不同积分时间降雨率的统一转换模式

1min积分时间降雨率概率分布是10GHz以上无线电系统雨衰减预测的基础性数据。但多数气象台站降雨率数据的积分时间大于1min，因而需要一种有效的转换方法。为此利用我国典型气候区的实测降雨率数据对几种不同积分时间降雨率转换模式进行了参数拟合与结果比较，在比较研究的基础上，提出了我国统一的转换模式。这一模式可较好地用于我国不同地区的降雨率转换。

A general conversion model of China rainfall rate distributions with different integration times

Rainfall data with 1 minute integration time is required in the prediction of rain attenuation for the given time percentage. But most of the data available have longer integration time, such as 10 min, 30 min, 60 min, etc. Therefore the conversion model for rainfall rate is needed. In this paper, several conversion models with different integration times are firstly introduced and analyzed on the basis of the measured data in several locations in China.Then, a general conversion model suitable for China rainfall rate distributions is presented by employing the parameter fit technique.The simulated results show that the model is available in different rain zone with a good accuracy.