基于格点的面雨量算法在老挝南欧江流域的应用

为提高南欧江流域水文预报模型雨量输入数据的质量,在充分结合南欧江流域雨量站网实际情况及降雨量计算方法特性的基础上,对降雨量计算方法进行优化改进,研究引入了基于格点的面雨量计算方法,提高了面雨量计算的容错能力和计算精度,并成功植入南欧江梯级水电站水情自动测报系统,充分利用遥测站点雨量监测数据,提高了南欧江流域梯级水电站水文预报精度。

In order to improve the quality of rainfall input data of hydrological forecasting model in Nan'ou River Basin,the rainfall calculation method is optimized and improved on the basis of fully combining the actual situation of rainfall station network and the characteristics of rainfall calculation method in Nan'ou River Basin.In this paper,the calculation method of area rainfall based on grid is introduced,the fault tolerance and accuracy of area rainfall calculation are improved,and the automatic water regime measurement and forecasting system of Nan'ou River cascade hydropower station is successfully implanted,which makes full use of the rainfall monitoring data of telemetry station.The accuracy of hydrological prediction of cascade hydropower stations in Nan'ou River Basin is improved.