Indirect Methods to Elucidate Water Flows and Contaminant Transfer Pathways through Meso-scale Catchments – a Review

We provide a critical review of indirect methods to elucidate water flows and contaminant transfer pathways through meso-scale catchments, as the proliferation of such methods in recent years has made it very difficult for potential users to evaluate their relative merits. Advantages and disadvantages in terms of data availability and underlying assumptions are highlighted to facilitate the selection of a suitable method.