Illustration of the rainfall–runoff–sediment measurements available at each gauging station for the event of June 5, 1997. Rainfall intensity over a 1-min period is first illustrated (a). The runoff rate (line, left y-axis) and the suspended sediment concentration (diamond shape, right y-axis) measurements related to this rainfall event are illustrated for non-tilled field (b), tilled field (c) and catchment (d).