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Report No.

Application of coupling simulation of atmospheric, terrestrial, and oceanic transport models to predict the environmental transport of radioactive materials discharged from the Fukushima Dai-ichi Nuclear Power Plant

Nagai, Haruyasu ; Tsuzuki, Katsunori ; Kobayashi, Takuya ; Terada, Hiroaki  

The Fukushima Dai-ichi Nuclear Power Plant accident caused the month-long discharge of radioactive materials into the environment. Also, substantial amount of contaminated water remains undisposed within the site, and the environmental impact in case of leakage is grate concern. To cope with these problems, computer simulations on the dispersion of radioactive materials in the environment are useful. Japan Atomic Energy Agency are trying to apply a coupling simulation of atmospheric, terrestrial, and oceanic models on the radioactive material transport in the environment. This coupling simulation is necessary to predict the discharge and transport of radioactive materials deposited on the ground to rivers and ocean. It is also effective to predict the transport of tritium in contaminated water that has two-way exchange between the atmosphere and land/sea surface. The method and preliminary results of coupling simulations will be presented.



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