Abstract
Taiwan is located in an area affected by Northwest Pacific typhoons, which are also one of the most important sources of rainfall to the island. Unfortunately, the abundant rainfall brought by typhoons frequently produces hazards. In recent years, typhoons and floods have caused serious damage, especially Typhoon Morakot in 2009. In this study, a probabilistic model is developed based on historical events which can be used to assess flood risk in Taiwan. There are 4 separate modules in this model, including a rainfall event module, a hydraulic module, a vulnerability module, and a financial loss module. Local data obtained from the Taiwan government are used to construct this model. Historical rainfall data for typhoon and flood events that have occurred since 1960, obtained from the Central Weather Bureau, are used for computing the maximum daily rainfall for each basin. In addition, the latest flood maps from the Water Resources Agency are collected to assess the probable inundation depth. A case study using the local data is carried out. Assessment is made to predict possible economic loss from different financial perspectives such as the total loss, insured loss, and loss exceeding probabilities. The assessment results can be used as a reference for making effective flood risk management strategies in Taiwan.
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References
Chang LF, Su MD (2001) Flood damage estimation for residential area. Thesis for Master of Science, Graduate Institute of Agricultural Engineering, National Taiwan University
Esteban M, Webersik C, Shibayama T (2009) Effect of a global warming-induced increase in typhoon intensity on urban productivity in Taiwan. Sustain Sci 4(2):151–163
Ge XY, Li T, Zhang SJ, Peng M (2010) What causes the extremely heavy rainfall in Taiwan during Typhoon Morakot (2009)? Atmospheric Sci Lett 11(1):46–50
Hsu WK, Hung DM, Chiang WL, Tseng CP, Tsai CH (2006) Catastrophe risk modeling and application-risk assessment for Taiwan residential earthquake insurance pool. The 17th IASTED international conference on modelling and simulation, pp 338–342
Kang JL, Su MD (2005) Regional flood risk assessment and uncertainty analysis. Thesis for PhD, Graduate Institute of Bioenvironmental Systems Engineering, National Taiwan University
Lai LH (2010) Risk estimate of rice damaged due to flood. Nonlinear Anal Real World Appl 11(3):1243–1248
Lin SY, Shaw DG, Ho MC (2007) Why are flood and landslide victims less willing to take mitigation measures than the public? Nat Hazards 44(2):305–314
Lugeri N, Kundzewicz ZW, Genovese E, Hochrainer S, Radziejewski M (2010) River flood risk and adaptation in Europe-assessment of the present status. Mitig Adapt Strateg Glob Change 15(7):621–639
Markus AA, Courage WMG, van Mierlo MCLM (2010) A computational framework for flood risk assessment in The Netherlands. Sci Program 18(2):93–105
Pandey AC, Singh SK, Nathawat MS (2010) Waterlogging and flood hazards vulnerability and risk assessment in Indo Gangetic plain. Nat Hazards 55(2):273–289
Schanze J, Zeman E, Marsalek J (2006) Flood risk management: hazards, vulnerability and mitigation measures. Springer, Berlin
Teng WH, Hsu MH, Wu CH, Chen AS (2006) Impact of flood disasters on Taiwan in the last quarter century. Nat Hazards 37(1–2):191–207
The Department of Statistics, Ministry of the Interior (2009) Loses caused by natural disasters. Statistical yearbook of interior
The Water Resources Agency (2004) A study on reassessment and reevaluation of designed flood and mitigation-structures improvement tasks in Taiwan
Tsai CH, Chen CW (2010) An earthquake disaster management mechanism based on risk assessment information for the tourism industry-a case study from the island of Taiwan. Tour Manag 31(4):470–481
Wang JJ, Ling HI, Smyth A (2008) Failures associated with the 2004 Mindulle typhoon in Taiwan. Geotech Geol Eng 26(1):79–90
Wurbs R, Toneatti S, Sherwin J (2001) Modeling uncertainty in flood studies. Water Resour Dev 17(3):353–363
Acknowledgment
The authors acknowledge financial support from the National Science Council of Taiwan, R.O.C., under project number NSC-98-2625-M-001-001.
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Hsu, WK., Huang, PC., Chang, CC. et al. An integrated flood risk assessment model for property insurance industry in Taiwan. Nat Hazards 58, 1295–1309 (2011). https://doi.org/10.1007/s11069-011-9732-9
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DOI: https://doi.org/10.1007/s11069-011-9732-9