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Track: Water Resources
Jesper Kjelds
Danish Hydraulic Institute
Agern Alle 5
Horsholm, 2970
DENMARK
Telephone: 011-45-45-769555
Fax: 011-45-45-762567
Gregers Jergensen
Flood Watch - GIS-Based Management System for Flood Forecast Applications
Many regions throughout the world have experienced severe river flooding during recent years. The flooding has resulted in loss of life and damage to property and crops, and has had negative impacts on human welfare. Recent floods in large river systems such as the Mississippi, Rhine, Mekong, Ganges, and Bramaputra have increased the awareness of responsible river authorities about the urgent need for an integrated GIS-based tool that will enable them to forecast flood conditions and manage the river environment. The MIKE 11 Flood Watch system integrates databases, the mathematical river model MIKE 11, pre and post-processing tools in an ArcView GIS environment. The dynamic MIKE 11 real-time Flood Forecast modeling tool is developed by the Danish Hydraulic Institute. MIKE 11 is widely acknowledged and has been applied worldwide in India, Bangladesh, Central America, Germany, Thailand, China, and other places. Flood Watch is a framework for MIKE 11 Flood Forecast applications; the database part is
designed for efficient storage, fast retrieval, and display of large amounts of data. The Flood Watch interface serves as the central manager for model data and acquisition of real-time data. Tools are also available for estimation of boundary data for forecasts, statistical analysis, and so forth. The strength of applying the Flood Watch system enhances and facilitates data management and forecast routines. Integration of the MIKE 11 GIS interface enhances system capabilities for forecast of river levels and depth area inundation for selected areas. The flexible and holistic approach encompassed in Flood Watch allows also for establishing a flood forecasting warning and response system for rapid and accurate dissemination that will help increase the level of awareness and preparedness. A decision support framework for professionals involved in flood forecasting has been developed. The Flood Watch integrates an established one-dimensional hydrodynamic modeling system, MIKE 11, with the ArcView GIS in a
single user-friendly GUI. The system has been extensively tested in several case studies including Bangladesh, one of the world's most complex hydraulic environments. The system has proven its capabilities in the fields of flood planning and structure design, as well as real-time operation for flood forecasting. The user-friendly interface makes it an ideal decision support tool for decision makers, as exemplified by its installation in the office of the Prime Minister of Bangladesh.
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