不同卫星遥感降水产品在辽东山区的适用性及修正方法研究

Research on Applicability and Correction Methods of Different Satellite Remote Sensing Precipitation Products in Mountainous Areas of Eastern Liaoning

文章对比分析CMA和JMA两种卫星遥感降雨产品在辽东山区降水量应用效果,并对其降水量进行修正。结果表明:CMA卫星降雨产品在大雨量级的总体应用效果好于JMA降雨产品。采用卡尔曼滤波方法对卫星遥感降水产品进行修正后,修正降水量和气象站实测降水量之间的误差<10%。研究成果对于卫星遥感降水产品在辽东山区的应用具有重要参考价值。

The application effects of CMA and JMA satellite remote sensing rainfall products on precipitation in mountainous areas of eastern Liaoning were compared and analyzed,and the precipitation was corrected in this paper.The results show that the overall application effect of CMA satellite rainfall products in heavy rainfall levels is better than that of JMA rainfall products.After the Kalman filtering method is used to correct the satellite remote sensing precipitation products,the error between the corrected precipitation and the precipitation measured by the weather station is less than 10%.The research results have important reference value for the application of satellite remote sensing precipitation products in the mountainous areas of eastern Liaoning.