利用GMS卫星资料进行强对流降水估计

Rainfall Estimates by GMS Satellite Data of Severe Convective Cloud

对利用静止卫星云图资料进行降水的估计方法进行了回顾 ,在总结前人方法的基础上 ,针对 GMS云图资料及华南地区的特点对强对流云团降水方法进行了研究 ,包括冷云区持续时间估计法、红外亮温法 ,并将梯度、发展率和常规探测资料加入其中进行分析。结果显示 ,综合几种资料 ,能较好地进行强降水的估计。

A brief overview of the different types of rainfall retrieval methodologies is presented using various channels data geostationary satellite from several methods of rainfall auto-estimate by GMS data in south-east China, including CCD(Cold Cloud Duration), rain rate versus cloud top temperature, add with cloud growth rate correction factor and the cloud top temperature gradient, along with the moisture correction factor(PWRH) of the convention sounding data. The result indicates that multi-sources data method contributes well to the precise rainfall rate estimate.