Book excerpt: Containing papers presented seventh international conference on the topic, this book Reviews the advances have been made in the development and application of software tools for predicting the flow, water quality, sediment transport and ecological processes in river systems. Organised by the Wessex Institute of Technology, the biennial conference was first held in 2001. The papers presented at the Conference address Water resources management; Flood risk management; Ecological and environmental impact; Erosion and sediment transport; Hydrological modelling; Sustainable rivers; Rivers and tourism; River restoration and rehabilitation; Hydropower impacts and solutions; River and watershed management; Integrated management; Water quality issues; Eutrophication and agricultural Pollution; Trans-boundary river issues; Estuaries, deltas and lagoons; Changing climate and adaptive water Management; Droughts and desertification; Wetlands; Water and health; Socio-economic and political issues; Water governance and water justice.