Fig.1. Schematic of the scaling procedure: (A) laboratory (dashed line) and field (solid line) measured water retention curves, (B) effective saturation (S_e) of the measured laboratory curve; (C) laboratory-measured (dashed line) and field-scaled (bold solid line) probability density functions (PDFs), (D) laboratory- (dashed line) and field-measured (solid line) water retention curves, and field-scaled retention curve (bold solid line). The critical pressure head, h_c, is the value on the laboratory curves corresponding to ^F₀.