Numerical prediction of atmospheric dispersion of radionuclides during the Fukushima Dai-ichi Nuclear Power Plant accident by WSPEEDI

Nakayama, Hiromasa; Nagai, Haruyasu

Nihon Kaze Kogakkai-Shi, 38(4), p.396 - 403, 2013/10

https://doi.org/10.5359/jawe.38.396

The Fukushima Daiichi Nuclear Power Plant accident in Japan triggered by a magnitude 9.0 earthquake and resulting tsunami on March 11, 2011 caused the month-long discharge of radioactive materials into the atmosphere. It was urgent to assess the radiological dose to the public resulting from this release, using both environmental monitoring data and computer simulation based on atmospheric dispersion modeling of radioactive materials. This paper describes the outline of atmospheric dispersion system developed at Japan Atomic Energy Agency and its application to the Fukushima Daiichi Nuclear Power Plant accident.