AUTOMATIC PARAMETER-ESTIMATION APPLIED ON A GROUNDWATER MODEL - THE PROBLEM OF STRUCTURE IDENTIFICATION

被引：6

作者：

ASCHENBRENNER, F

OSTIN, A

机构：

[1] Institut f. Angewandte Geowissenschaften der Justus-Liebig-Universität, Giessen, D-35390

来源：

ENVIRONMENTAL GEOLOGY | 1995年 / 25卷 / 03期

关键词：

GROUNDWATER MODELING; PARAMETER ESTIMATION;

D O I：

10.1007/BF00768550

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The properties of a Pleistocene aquifer located in NW Germany were evaluated by means of an inverse two-dimensional numerical model in the vertical plane. The steady-state drawdown recorded at the end of a pumping test was used to calibrate the model with a Gauss-Newton parameter estimation method. The results were analyzed within a formal statistical procedure by means of eigenvalues and eigenvectors. Although a mathematically meaningful value for the standard error can be obtained, the resulting set of permeabilities depends strongly upon the choice of the zonation pattern.

引用

页码：205 / 210

页数：6

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