학술논문
STUDY OF RIVER INFLOW LOAD OF CESIUM TO TOKYO BAY USING NUMERICAL MODEL / 数理モデルを用いた放射性物質の河川から東京湾への流入に関する検討
Document Type
Journal Article
Author
Source
土木学会論文集B1（水工学） / Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering). 2019, 75(2)757
Subject
Language
Japanese
ISSN
2185-467X
Abstract
The object of this study is to predict the distribution of cesium deposited on the bottom of Tokyo Bay by means of the Hybrid Box Model linked with a diffusion model, released by Fukushima Daiichi Nuclear Power Plant. On the basis of the load fluxes from rivers, the distribution of concentration (separately for dis-solved cesium and small and large particulate cesium) in seawater and the mass of cesium sedimentation to the bottom of the bay were calculated by the models. Results were compared to the published observation data in order to examine applicability of the used models. Estimated cesium concentrations in the sediment show good agreement with the observed data.