Fig. 5. Comparative fit of seven models: (a) sand (Jangcheon soil, 20–65 cm), (b) loamy sand (Kocheon soil, 55–100 cm), and (c) sandy loam (Kwangpo soil, 60–120 cm). Obs. = observed, SL = simple lognormal model, SC = Shiozawa and Campbell model, Gomp. = Gompertz model, ORL = offset-renormalized lognormal model, ONL = offset-nonrenormalized lognormal model, and Fred. = Fredlund model.