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Core Technology |
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About Us |
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IT as Applied to Hazard Mitigation
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Introduction
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Each year, Taiwan is hit by three or four major typhoons. According to Taiwan’s Central Weather Bureau (CWB), typhoons cause an estimated US 1/2 billion US dollars in damage annually! Most of this damage is caused by flooding. In order to help predict and lessen the severity of natural calamities, the NCHC and the CWB are applying supercomputing and advanced networking technology to the science of flood and hazard mitigation. By applying supercomputing and Grid technologies to hazard mitigation, we are able to significantly reduce the amount of damage done and victims affected by these natural disasters. The result of these efforts is NCHC’s Hazard Mitigation Grid.
The NCHC’s Hazard Mitigation Grid team has defined the areas most susceptible to flooding across 22 counties in Taiwan. Using this information, we have constructed a flood prevention database. The computation Grid assists us in collecting and analyzing river rainfall data such as precipitation, distribution, and runoff. Authorities are able to monitor the flood forecasting system via the Internet and use this information to make sound decisions when dealing with emergency situations.
The NCHC is collaborating with national academic and research institutes to help the government integrate hazard mitigation with IT. This project brings together advanced HPC technologies such as networking, databases, high-performance computing, scientific visualization, storage, and geographic information systems (GIS) to provide authorities decision support during natural calamities such as earthquake, mudflows and landslides, flooding, groundwater pollution, and other ecological crisis. It is our hope that, through this program, hazard mitigation and environmental protection in Taiwan will be greatly enhanced.
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Future Development and Goals
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Professionals from the fields of civil engineering, hydrology, fluid mechanics, IT, geographic information systems, and scientific visualization came together to create a research alliance and develop the Hazard Mitigation project. These professionals came from Taiwan’s academic and research centers such as the NCHC, National Taiwan University (NTU), National Chiao Tung University (NCTU), and the Institute for Information Industry (III). The research results from the project were transferred to authorities including the NSC, the Agriculture Council, the 921 Earthquake Post-Disaster Recovery Commission, the Ministry of Education (MOE), and the Water Resources Bureau (WRB). In the near future, we will add the following numerical and IT applications to the Hazard Mitigation project:
- Multi-phase flow simulation,
- The digital life of the puddle rice field including its production, life, and ecology,
- The numerical analysis of crop growth and groundwater simulation, and
- The integration of GIS with numerical analysis.
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Research Results:
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- The development of the next generation system model and decision-supported technologies for the Tan-Shui River Flood Forecasting project (1/3) (NSC) (2000)
- The development of the next generation system model and decision-supported technologies for the Tan-Shui River Flood Forecasting project (2/3) (NSC) (2001)
- The development of the next generation system model and decision-supported technologies for the Tan-Shui River Flood Forecasting project (1/3) (NSC) (2002)
- Education and e-Learning of ecology farmland (COA) (2001)
- The promotion of farmland ecology in the digital age (COA) (2002)
- The application of networked visualization for hydroinformatics (NSC) (2001)
- Taiwan’s networked virtual coastal circulation (NSC) (2002)
- The development of numerical model databases to analyze the deterioration of water quality due to irrigation water separation: “2-D Numerical Simulation of Farmland Irrigation Water Quality” (COA) (2001)
- The design of the motion to separate the irrigation water from the sewage and to develop a water treatment facility: “The Application of IT in Preserving Farmland Ecology and Hydrology” (COA) (2002)
- Networked calculation and application of numerical models to preserve farmland ecology and water conservation (COA) (2003)
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Current Applications:
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- The digital life of the puddle rice field including its production, life, and ecology (COA) (2003-2004)
- Experimental studies of density currents and operations of decreasing sediment deposition in reservoirs（1/3）(2004-2005)
- Investigation of flow and bed shear stress field characteristics near hydraulic structures and their numerical simulations (2004-2005)
- XiBow Dam numerical simulation - DAMA tunnel flow fields (2004-2005)
- Development of the Flood Forecasting and Mitigation Grid, A Prototype (2004-2005)
- The planning and development of a Grid-based system for drought forecasting (WRA) (2004-2005)
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Two-phase flow dam break simulation
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Two-phase flow bubble rising simulation
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3-D flow simulation of a curve
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“Networked Virtual Ocean World” illustration of (a) underwater and (b) ocean waves
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Groundwater flow simulation GUI
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Free surface simulation = 2 seconds
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