Predicting the long-term $$^{137}$$Cs distribution in Fukushima after the Fukushima Dai-ichi Nuclear Power Plant accident; A Parameter sensitivity analysis
福島における福島第一原子力発電所事故後の$$^{137}$$Csの長期分布予測; パラメータ感度解析
山口 正秋; 北村 哲浩; 小田 好博; 大西 康夫*
Yamaguchi, Masaaki; Kitamura, Akihiro; Oda, Yoshihiro; Onishi, Yasuo*
We applied a model, to predict long term cesium distribution on Fukushima area, based on the USLE and simple sediment discharge formulas. Sensitivity analysis was conducted here to narrow the range of the output results due to the uncertainties of parameters. The preliminary calculation indicated significant deposition of sand portion within river basins. On the other hand the most of the eroded silt and clay portions were transported downstream to the river mouths. Annual sediment outflow into the ocean from Abukuma River and its total from the other 13 river basins vary between calculation cases based on the variation of land use, landform or precipitation. On the other hand, contributions of those parameters are relatively small for $$^{137}$$Cs concentration within transported soil. This indicates the total amount of $$^{137}$$Cs outflow into the ocean could be controlled by amount of soil erosion and transport, and total amount of $$^{137}$$Cs remaining within the basin.
使用言語 : English
掲載資料名 : Journal of Environmental Radioactivity
: 135
ページ数 : p.135 - 146
発行年月 : 2014/09
出版社名 : Elsevier
特許データ :
論文URL :
キーワード : 福島第一原子力発電所事故; Fukushima Daiichi Nuclear Power Station Accident
使用施設 :
広報プレスリリース :
受委託・共同研究相手機関 :
登録番号 : AA20130714
抄録集掲載番号 : 42000720
論文投稿番号 : 14348
Accesses  (From Jun. 2, 2014)
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