Atmospheric Modeling of 137Cs Plumes From the Fukushima Daiichi Nuclear Power Plant—Evaluation of the Model Intercomparison Data of the Science Council of Japan

摘要: Since the Fukushima Daiichi Nuclear Power Plant (FDNPP) accident in March 2011, atmospheric simulation models have improved our understanding of behavior radionuclides. Model intercomparisons provide valuable and useful information for evaluating validity variability individual model results. In this study, we compared results seven transport used to simulate 137Cs released from FDNPP atmosphere. All analysis had been submitted a intercomparison project Science Council Japan (2014, http//www.scj.go.jp/en/report/index.html). Here assessed performance by comparing with observed hourly concentrations 137Cs, particular focus on nine plumes over Tohoku Kanto regions. The showed that reproducing was highly variable among different plumes. general, better reproduced passed many observation stations. consistent simulated wind fields source terms used. We also relation accumulated deposition. Simulated areas high deposition were plume pathways, though best those ensemble mean all consistently well, suggesting use multimodel more effective performance. ©2018. American Geophysical Union. Rights Reserved.