#power law 2 kernel, parameters for Hermiston 2002; 1st col. field aspect ratio [m]; 2nd col. R0. Field area is 1 ha. Spatial grid 150x150 gridpoints. Plotted as points on the dashed blue curve in Fig.4(a). 0.01 22.9754382957 0.044471 26.4277479268 0.1 27.8294551666 0.2 28.7467969115 0.5 29.507060995 1.0 29.6899782641