Can Local ADE-based Models with Sufficient Detail Predict the Anomalous Transport Observed at the MADE Site (Invited)

Abstract:

Several modeling approaches ranging from the local advection-dispersion equation (ADE) with sufficient detail to multi-rate mass transfer and continuous time random walks among others have been performed with varying degrees of success in reproducing the anomalous solute transport behavior observed at the MADE site, i.e., too much mass at early times and too little at late times, and high concentrations maintained near the source and a far and dilute reaching front of the plume. All of these studies give a range of arguments and hypotheses on why the solute movement at the MADE site could or could not be predicted employing a certain model. This work provides a critical review of some of the arguments presented and gives some new insights concerning the tracer transport at the MADE site.