Reducing Flood Risk using Computer System for Monitoring River Embankments

Reducing Uncertainty in River Flood Conveyance

A Spatial Decision Support System for Flood Risk Monitoring

Flooding is a natural phenomenon that has increasing impact on people and their environment. This is very evident that in the devastation wrought by rising waters inundating homes and farms in East Africa. Flooding only serves to exacerbate the crisis faced by people of that region as they struggle against famine and civil war. A spatial decision support system was designed and used to simulate...

Flood Risk and River Basin Management

The aim of this study is to identify the sources of uncertainty that induce the largest uncertainties in the model outcomes and quantify this uncertainty using expert elicitation. Analysis of expert opinions showed that the Qh-relation and the roughness predictor of the main channel cause the largest uncertainties for design water level computations. For effect studies, the floodplain topograph...

Flood Risk and River Basin Management

Recent scenario studies on water management focus on one or two projection years and the effects on the water system and functions. The future is however more complex and dynamic. Therefore, we analyse transient scenarios in order to evaluate the performance of water management strategies. Current available simulation tools are not suitable for this purpose. Therefore, we have developed and use...

Flood risk mapping for Pari River incorporating sediment transport

Geographic Information Systems (GIS) are an efficient and interactive spatial decision support tool for flood risk analysis. This paper describes the development of ArcView GIS extension — namely AVHEC-6.avx — to integrate the HEC-6 hydraulic model within GIS environment. The extension was written in an Avenue Script language and Dialog Designer with a series of ‘point and click’ options. It ha...