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Fig. 4. Effect of flow rate (Jw) class and scale of the experiment on the dispersivity for the different transport distance (z) classes. The boxes span the 25 and 75% percentiles, the thick black line is the median, and the 0 and 90% percentiles correspond with the extremities of the vertical bars. The numbers above or below the boxes correspond with the number of observations in the class. (Data from the same experiment in a travel distance class were averaged and treated as a single entry).
