摘要
针对建立岩溶泉水流量预测模型所存在的问题,通过引入降水量主影响年为自变量因子,用主影响年上1a和下1a的降水量为修正因子,并用变量因子的指数大小间接反映其权重及影响度,有效提高了模型的拟合及预测精度。通过实例进行了残差平方和、平均相对误差及相关指数的计算和比较。
To solve problems existed in spring water discharge pr ediction model establishment,take the main influence precipitation year as a ind ependent variable, the prebously and subsequently precipitation as the reverse f actors, and the index of the variables can be used to value their weights and in fluence levels. As a result the accuracy of prediction is improved effectually. For the calcultion of the total sum of squares deviation, the relative errors, t he correlation coefficient,and for making comparisen between them, an example is introduced in the paprer.
出处
《水电能源科学》
2005年第3期32-34,i004,共4页
Water Resources and Power
关键词
泉水流量
预测模型
降水量
spring water discharge
prediction model
precipitation
