摘要
以往人们仅用二维趋势面分析内插水位,本文将时间变量引入二维趋势面分析中,即所谓的三维趋势面分析,三维趋势面分析不仅可内插水位,而且能预报地下水位变化。首先将趋势分析问题转化为人们熟知的多元线性回归分析问题,以确定预报方程的系数,方法的原理简单,计算方便。对水文地质条件复杂的地区,水文地质参数,边界条件和源汇项难以查清,应用地下水动力学方法是有困难的,在这种情况下用三维趋势面分析预测地下水动态效果令人满意。文章最后给出了一个应用实例。
Groundwater leved was interpolated by using only two dimensional trend surface analysis before. The paper introduces time variable into the two dimensional trend surface analgsis to form a So-called three dimensional trend surface analysis, which can not only interpolate water level, but also predict the change of water level. The trend surface analysis problem is turued first into multiple linear regression analgsis problem, which is familiar to most, in order to determine the coefficient of prediction equation. The theory of the method is simple and its calculation is convenient. For areas of Complicated hydrogeological condition, where hydrogeological paramenters, boundary conditions and sink (or source) terms are difficult determine and groundwater hydraulics method can not be used, the three dimensioned trend surface analysis in the prediction of groundwater regime. A practical eyample is given in the end of the paper.
出处
《水文地质工程地质》
CAS
CSCD
北大核心
1989年第5期35-36,41,共3页
Hydrogeology & Engineering Geology
