A spatial decision support system for flood hazard in Quang Nam province, Vietnam
2017
Ong Dinh Bao, Tri
The general aim of this study is to provide decision makers and planners with a spatial decision support system (SDSS), for quantifying flood hazards in order to cope with deluge situations within the Quang Nam basin of Vietnam. This flood management SDSS provides a comprehensive set of tools for rainfall and runoff modelling, hydraulic modelling and frequency analysis for the examination of the flood nature in the Quang Nam basin. This system is implemented in the context of complex aspects of hydrological features present in the province, such as relationships between the river systems, rainfall patterns and topographical features of the basin. The concrete result of the study is an IT system that is developed on the information derived from the aforementioned context using Visual Basic programming language running on top of a GIS platform. This exploration is ‘state of the art’ in its usage of modern science and technology in quantifying the aspects of flood hazards, including the mapping of flood areas and ranking of different levels of probability in multi-scale and temporal resolution. This analytical approach is also a reflection of a ‘best practice’ methodology which is a combination of enhanced local knowledge and modern technology: that is a GIS-based flood simulation and analysis, to assist decision makers to gain quick feedback through interactive spatial IT tools.
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