Interception losses (I) vary with the rainfall rate (P) and the type of cover. For a small grain, the interception is also a function of the average crop height (h). The following data were measured during rainstorms from an experimental plot.

h (ft) P (in.) I (in.) h (ft) P (in.) I (in.)

0.83 0.68 0.04 1.52 0.84 0.10 0.95 1.43 0.11 1.68 1.33 0.19 1.22 0.92 0.10 1.82 1.71 0.25 1.31 1.28 0.14 1.97 0.62 0.12 1.35 1.57 0.19 2.11 0.79 0.14