Fig. 3. Number of observation in different soil texture classes (c: clay, sic: silty clay, sc: sandy clay, cl: clay loam, sicl: silty clay loam, scl: sandy clay loam, sil: silt loam, silg: silt loam gravel, l: loam, sl: sandy loam, ls: loamy sand, s: sand, sg: sandy gravel) and flow boundary condition classes.