A Numerical Simulation of Global Transport of Atmospheric Particles Emitted from the Fukushima Daiichi Nuclear Power Plant

DOI Web Site 被引用文献25件 参考文献5件 オープンアクセス
  • Takemura Toshihiko
    Research Institute for Applied Mechanics, Kyushu University
  • Nakamura Hisashi
    Research Center for Advanced Science and Technology, The University of Tokyo Department of Earth and Planetary Science, The University of Tokyo
  • Takigawa Masayuki
    Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology
  • Kondo Hiroaki
    National Institute of Advanced Industrial Science and Technology
  • Satomura Takehiko
    Graduate School of Science, Kyoto University
  • Miyasaka Takafumi
    Research Center for Advanced Science and Technology, The University of Tokyo Department of Earth and Planetary Science, The University of Tokyo
  • Nakajima Teruyuki
    Atmosphere and Ocean Research Institute, The University of Tokyo

書誌事項

公開日
2011
資源種別
journal article
DOI
  • 10.2151/sola.2011-026
公開者
公益社団法人 日本気象学会

説明

The powerful tsunami generated by the massive earthquake that occurred east of Japan on March 11, 2011 caused serious damages of the Fukushima Daiichi Nuclear Power Plant on its cooling facilities for nuclear reactors. Hydrogen and vapor blasts that occurred until March 15 outside of the reactors led to the emission of radioactive materials into the air. Here we show a numerical simulation for the long-range transport from the plant to the U.S. and even Europe with a global aerosol transport model SPRINTARS. Large-scale updraft organized by a low-pressure system traveling across Japan from March 14 to 15 was found effective in lifting the particles from the surface layer to the level of a westerly jet stream that could carry the particles across the Pacific within 3 to 4 days. Their simulated concentration rapidly decreases to the order of 10-8 of its initial level, consistent with the level detected in California on March 18. The simulation also reproduces the subsequent trans-Atlantic transport of those particles by a poleward-deflected jet stream, first toward Iceland and then southward to continental Europe as actually observed.

収録刊行物

  • SOLA

    SOLA 7 101-104, 2011

    公益社団法人 日本気象学会

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