Articles | Volume 12, issue 23
https://doi.org/10.5194/bg-12-7107-2015
https://doi.org/10.5194/bg-12-7107-2015
Research article
 | 
08 Dec 2015
Research article |  | 08 Dec 2015

Ocean dynamic processes causing spatially heterogeneous distribution of sedimentary caesium-137 massively released from the Fukushima Daiichi Nuclear Power Plant

H. Higashi, Y. Morino, N. Furuichi, and T. Ohara

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Short summary
We elucidated ocean dynamic processes causing spatially-heterogeneous sedimentary radiocaesium-137 distribution in and around the shelf off Fukushima and adjacent prefectures on the basis of numerical simulation. Our result suggests that accumulation of sedimentary radiocaesium-137 in a swath just offshore of shelf break results from spatiotemporal variation of bottom friction occurred via a periodic spring tide about every 2 weeks and via occasional strong wind.
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