Fig. 6. Model efficiencies (EF_tot) for all generalized likelihood uncertainty estimation (GLUE) simulations (gray) and for the GLUE simulations with parameter values that lie within all sequential uncertainty fitting (SUFI) posterior uncertainty domains (black). The EF_tot values were calculated using all observations. The horizontal lines indicate the threshold for behavioral simulations. The term K_b is the saturated micropore hydraulic conductivity, K_oc is the soil organic carbon partition coefficient, d_top and d_sub are the diffusion pathlengths in the topsoil and subsoil, respectively, and µ_top and µ_sub are the degradation rate coefficients in the topsoil and subsoil, respectively.