Fig. 3. Experimental data on flow and transport: (a) total water fluxes at the outlet rows, (b) variability (standard deviation) in water fluxes among individual outlets, (c) number of flowing individual outlet ports, (d) mean Br concentrations by row, (e) standard deviation in Br concentrations by row, (f) flux-averaged Br concentrations by row, (g) mean NO₃ concentrations by row, (h) standard deviation in NO₃ concentrations by row, (i) flux-averaged NO₃ concentrations for the outlet rows. Symbols: • = Row 2, = Row 3, = Row 4, = Row 5.