Flood Generation and Flood Waves

Catchment hydrological response and resulting flood generation are governed by a suite of complex interactions between basin characteristics, storm properties, and antecedent wetness conditions. This chapter links soil water movement at the plot scale to runoff production at the hillslope scale through to flood generation at the catchment scale. Initially, the chapter explores new approaches to understanding flood generation using the concept of hydrological connectivity. The chapter then examines selected studies of flood generation across different environments to highlight the relationship between process and theory. Finally, the chapter considers the dynamics of flood waves as they propagate through fluvial systems. Two key avenues for future research are highlighted: (1) developing the concept and associated metrics of hydrological connectivity and (2) furthering our understanding of catchment-scale impacts of land-use management practices.