A practical exercise to demonstrate the variable source area model

Abstract

A practical exercise is described which allows students to measure the spatial variation of runoff production within a low‐order drainage basin. Dilution gauging techniques are used to measure stream discharge. These discharge data may then be used to provide evidence of the spatial pattern of sediment and solute delivery within the basin. A full description and evaluation of the practical is provided. Details of the gauging measurements are given in the appendix.