Simple Spatially-distributed Model for Inundation Simulations
Date Issued
2008
Date
2008
Author(s)
Su, Yu-Hui
Abstract
Although traditional inundation models have been applied with good accuracy in Taiwan, they usually require a long computing time for simula-tions. However, the meteorological and geographical conditions in Taiwan frequently cause inundation within a short time period when storm occurs. The lead-time for emergency response in too short to indicate the areas with high flood risks for evacuation by using the traditional inundation models.he study aims to establish an inundation model for Taiwan and inte-grate the QPESUMS system which constructed and developed by the Cen-tral Weather Bureau. The radar precipitation by the QPESUMS system, as well as the rain-gauge records, are considered in the inundation model for real-time simulations. The precipitation data of typhoon NARI were simu-lated and evaluated different scale of grid size that the accuracy and effi-ciency of model would be suggested for practical applications.he Keelung River basin is adopted as the study areas of the inunda-tion model. By use of QPESUMS radar precipitation for the typhoon HAITANG and KROSA, the inundation simulations can be calculated in a short time. The model will be executed in the future, to simulate the flood scenarios induced by the occurring and the forecasted rainfalls. The inun-dation will be predicted in 1-3 hours ahead to help the emergency managers taking proper strategies for disaster mitigations.
Subjects
Inundation model
QPESUMS system
Real-time simulation
Inundation forecasting
Type
thesis
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