Sensitivity Analysis of Ground-Water Models

摘要: One of the most difficult tasks in ground-water modeling is estimation aquifer parameters from field measurements hydraulic head. This paper examines model sensitivity through use analysis. For each parameter one can define a coefficient. These coefficients depend on choice model, spatial coordinates, time variable, number and type parameters, boundary conditions. good to all should be independent as large possible at locations times interest. Methods for determining are discussed some typical examples showing certain important characteristics presented. The used estimate variances confidence intervals parameters. increased by applying general principles Several improved