Parallel Session 4:
Flood and Sediment Disaster Counter Measures: Structural and Non-structural Approaches (including early-warning systems)

Concept note:

Flood and sediment disasters are expected to increase in frequency and scale around the world in association with rapid population growth and climate change. Effective countermeasures should be implemented to reduce the vulnerability to such disasters, using various approaches, both structural (e.g., flood control by dams, river improvement works, and sediment source control and trapping works) and non-structural (e.g., forecasting and early warning, evacuation planning, and emergency response preparedness). Particularly, recent advancements in observation technology, numerical weather modeling, flood and sediment disaster forecasting, dam operation, early warning, and risk communication provide a unique opportunity to utilize structural and non-structural approaches in a combined way to control and mitigate the impact of water-related disasters effectively. This session will discuss recent advancements in both approaches and their practical applications for better management of flood and sediment disasters.

Session topics

1) Early warning and flood forecasting systems

Keywords: early warning system, hazard map, flood forecasting, distributed hydrological model, evacuation, dam operation, flood control, flood monitoring, flood and sediment disaster

2) Structural countermeasures for flood and sediment disasters

Keywords: flood and sediment disasters, structural countermeasures, dam, levee, bank protection, flood control, sediment transport, check dam, numerical simulation

3) River channel design – Structural and non-structural countermeasures-

Keywords: river channel design, river planning, flood and sediment disasters, disaster mitigation, river channel morphology, bed deformation and channel change, bank erosion, sediment transport, numerical simulation