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Analysis of ground deposition of radionuclides under different wind fields from the Fukushima Daiichi accident

Author

Listed:
  • Jiansong Wu

    (China University of Mining and Technology)

  • Xiaofeng Hu

    (People’s Public Security University of China)

  • Jinyu Ma

    (China University of Mining and Technology)

  • Can Zhang

    (China University of Mining and Technology)

  • Shuaizi Mojia

    (People’s Public Security University of China)

Abstract

The relationship between ground deposition of radionuclides and wind fields from the Fukushima Daiichi accident was investigated using the weather research and forecasting/chemistry model with the improvements by adding the radioactive decay process, dry and wet deposition parameterizations. To examine this correlation, wind fields near Fukushima Daiichi nuclear power plant (FDNPP) were defined as four different types mainly based on the wind direction, and the contaminated land areas were classified to five levels. The results showed that the distribution of the ground deposition of the radionuclides is mainly determined by the wind field rather than the precipitation distribution; Northeast wind has the largest contaminated land areas, and it is considered to much more easily accelerate the transport of radionuclides than any other wind direction near the FDNPP. It was also indicated by the results that in terms of high contaminated land area (>100 Bq/m2), total ground deposition is dominated by dry deposition for 131I, and by wet deposition for 137Cs.

Suggested Citation

  • Jiansong Wu & Xiaofeng Hu & Jinyu Ma & Can Zhang & Shuaizi Mojia, 2017. "Analysis of ground deposition of radionuclides under different wind fields from the Fukushima Daiichi accident," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 87(1), pages 533-544, May.
  • Handle: RePEc:spr:nathaz:v:87:y:2017:i:1:d:10.1007_s11069-017-2777-7
    DOI: 10.1007/s11069-017-2777-7
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    References listed on IDEAS

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    1. Gwyneth Dickey Zakaib, 2011. "Radiation risks unknown," Nature, Nature, vol. 471(7339), pages 419-419, March.
    2. Nazzareno Diodato & Michele Ceccarelli, 2005. "Geographical Information Systems and Geostatistics for Modelling Radioactively Contaminated Land Areas," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 35(2), pages 229-242, June.
    3. Koji Minoura & Tsutomu Yamada & Shin-ichi Hirano & Shinji Sugihara, 2014. "Movement of radiocaesium fallout released by the 2011 Fukushima nuclear accident," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 73(3), pages 1843-1862, September.
    4. Ji Kwun & You-Keun Kim & Jang-Won Seo & Ju Jeong & Sung You, 2009. "Sensitivity of MM5 and WRF mesoscale model predictions of surface winds in a typhoon to planetary boundary layer parameterizations," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 51(1), pages 63-77, October.
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