Sensitivity analysis of input parameters in numerical modeling of steady state regional groundwater flow

摘要: A finite element model was used to examine the sensitivity of computed hydraulic head values changes in conductivity subsurface flow systems. Steady state saturated nonuniform anisotropic cross sections considered. From an examination several hypothetical it apparent that analysis procedure could be useful locating those areas system are most sensitive and determining components have greatest effect on distribution. Consequently, a very designing efficient measurement programs. One method has frequently been determine conductivities is adjust numerical until agree with field measurements. Information presented indicates this lead erroneous conclusions. By using analyses, developed for quantitative value ratios from measurements head. In principle, number must equal unknown ratios. The accuracy results suggests should evaluated situation.