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タイトル大気海洋拡散シミュレーションによる福島第一原子力発電所事故に伴う大気放出量の推定
翻訳タイトルSource term estimation of atmospheric release due to the Fukushima Dai-ichi Nuclear Power Plant accident by atmospheric and oceanic dispersion simulations
情報提供機関Taylor & Francis
著者小林 卓也
著者永井 晴康
著者茅野 政道
著者川村 英之
掲載日2013-03
言語eng
ページ数255p.-264p.
種別report
内容記述The source term of the atmospheric release of 131I and 137Cs due to the Fukushima Dai-ichi Nuclear Power Plant accident estimated by previous studies was validated and refined by coupling atmospheric and oceanic dispersion simulations with observed 134Cs in seawater collected from the Pacific Ocean. By assuming the same release rate for 134Cs and 137Cs, the sea surface concentration of 134Cs was calculated using the previously estimated source term and was compared with measurement data. The release rate of 137Cs was refined to reduce underestimation of measurements, which resulted in a larger value than that previously estimated. In addition, the release rate of 131I was refined to follow the radioactivity ratio of 137Cs. As a result, the total amounts of 131I and 137Cs discharged into the atmosphere from 5 JST on March 12 to 0 JST on March 20 were estimated to be approximately 2.0times1017 and 1.3times1016 Bq, respectively.
情報源JOPSS関連URL関連URL
関連するサイト
基礎・基盤研究全体マップ(2021)
URIhttps://f-archive.jaea.go.jp/dspace/handle/faa/211506