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Analysis of Inverse Procedures for Estimating Parameters Controlling Macropore Flow and Solute Transport in the Dual-Permeability Model MACRO

Department of Soil Sciences, SLU, Box 7014, 750 07, Uppsala, Sweden

View larger version (30K): [in a new window]   Fig. 1. Generated data set for cases both with and without macropore flow: (a) accumulated percolation, (b) tracer and (c) reactive solute leaching rates, and profiles of resident concentration for (d) the tracer and (e) the reactive solute.

View larger version (19K): [in a new window]   Fig. 2. Simulation of (a) the accumulated percolation, (b) the tracer leaching rate, and (c) resident concentration. The "measured" data were generated for the case with macropore flow and were corrupted by independent normally distributed error.

View larger version (24K): [in a new window]   Fig. 3. Simulation of (a) the reactive solute leaching rate and (b) resident concentration. The "measured" data were generated for the case with macropore flow and were corrupted by independent normally distributed error.

View larger version (41K): [in a new window]   Fig. 4. Response surfaces of the objective function in (a) the (Dv, d) plane and (b) the (n*, d) plane (logarithmic scale). The crosses identify the true values of the parameters.

View larger version (37K): [in a new window]   Fig. 5. Response surfaces of the objective function in the (a) (µref, zf) plane, (b) (f, zf) plane, and (c) (n, zf) plane (logarithmic scale). The crosses identify the true values of the parameters.