基于GRACE卫星和GLDAS系统的地下水水位估算模型——以和田地区克里雅河流域为例

孙倩, 阿丽亚·拜都热拉

Mathematical fitting of influencing factors and measured groundwater level: Take Keriya River Basin in Hetian area as an example

Qian SUN, BAIDOURELA·Aliya

表3 影响因子与地下水水位的线性拟合和多元逐步回归模型

Tab. 3 Linear fitting of groundwater level and influencing factors, stepwise regression model

模型类型 拟合函数 模型校正 模型检验 R2 RMSE F R2 RMSE F t 线性函数 Y=0.167X1+0.125X2-0.634X3-0.327X4+5.745 0.5012 1.4722 12.98 0.5810 0.9189 10.34 2.021 多元逐步回归 Y=0.642X1+0.016X2+0.261X3-0.191X4+0.41 0.7381 0.4428 21.32 0.6824 0.4393 17.49 2.242