Fig. 3. Local-scale dispersivity as a function of soil depth obtained by using the LSM method (Probes 1 to 6: squares, Probes 7 to 9: circles, and probes 10 to 12: triangles). Error bars show the standard deviation. For improving readability, the _L values obtained from time domain reflectometry (TDR)-readings positioned at the same depth have been a slightly shifted on the depth-axis.