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Frontiers of Earth Science

Front. Earth Sci.    2010, Vol. 4 Issue (2) : 205-228     DOI: 10.1007/s11707-010-0001-0
Research articles |
Long-term risk assessment of possible accidental release of nuclear power plants in complex terrains with respect to synoptic weather patterns
Ni-Bin CHANG1,Der-Quei CHANG2,
1.Department of Civil and Environmental Engineering, University of Central Florida, Orlando, FL 32816, USA; 2.Department of Environmental Engineering, National Cheng-Kung University, Tainan, China;
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Abstract This paper presents an integrated effort of a long-term risk analysis for the emergency response of nuclear power plants in complex terrains. Use of coupled source term, fate and transport, and exposure assessment models associated with eight synoptic weather patterns successfully provides timely and reasonably accurate long-range prognostic wind fields to simulate the possible exposure episodes and risk potential. The seamless integration of multi-scale simulation models in accordance with different release scenarios of process source term in the nuclear power plants permits the simulation of pollutant fate, transport, and deposition processes in multiple dimensions of atmospheric environment. With the aid of spatial analysis, the assessment of potential detrimental impacts for the accidental release of various nuclides from nuclear power plants becomes achievable. The practical implementation of this integrated modeling system was assessed by case studies at one existing nuclear power plant in southern Taiwan, China. Two- and three-dimensional fly-through visualization technologies make risk assessment practical and credible based on the differing weather patterns identified at the continental scale in advance.
Keywords emergency response      risk analysis      nuclear power plant      source term model      puff model      mesoscale meteorological model      geographical information system      
Issue Date: 05 June 2010
 Cite this article:   
Ni-Bin CHANG,Der-Quei CHANG. Long-term risk assessment of possible accidental release of nuclear power plants in complex terrains with respect to synoptic weather patterns[J]. Front. Earth Sci., 2010, 4(2): 205-228.
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