Time evolution of Fukushima-derived radiocesium in the western subtropical gyre of the North Pacific Ocean by 2017

In 2015–2017, we measured activity concentration of radiocesium in the western subtropical gyre of the North Pacific Ocean and revealed the time evolution of radiocesium derived from the Fukushima Dai-ichi Nuclear Power Plant (FNPP1) accident between 2011 and 2017. The FNPP1-derived radiocesium depo...

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Autores principales: Kumamoto, Yuichiro, Aoyama, Michio, Hamajima, Yasunori, Oka, Eitarou, Murata, Akihiko
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer International Publishing 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6267151/
https://www.ncbi.nlm.nih.gov/pubmed/30546188
http://dx.doi.org/10.1007/s10967-018-6133-5
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author Kumamoto, Yuichiro
Aoyama, Michio
Hamajima, Yasunori
Oka, Eitarou
Murata, Akihiko
author_facet Kumamoto, Yuichiro
Aoyama, Michio
Hamajima, Yasunori
Oka, Eitarou
Murata, Akihiko
author_sort Kumamoto, Yuichiro
collection PubMed
description In 2015–2017, we measured activity concentration of radiocesium in the western subtropical gyre of the North Pacific Ocean and revealed the time evolution of radiocesium derived from the Fukushima Dai-ichi Nuclear Power Plant (FNPP1) accident between 2011 and 2017. The FNPP1-derived radiocesium deposited on the area south of the Kuroshio/Kuroshio Extension Currents in March 2011 was transported southward and westward through subsurface layers due to subduction of the subtropical mode water. In 2014, the radiocesium in the subsurface layers returned to the north and circulated within the Kuroshio recirculation area. Then in 2015–2017, the radiocesium re-circulated with the area. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s10967-018-6133-5) contains supplementary material, which is available to authorized users.
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spelling pubmed-62671512018-12-11 Time evolution of Fukushima-derived radiocesium in the western subtropical gyre of the North Pacific Ocean by 2017 Kumamoto, Yuichiro Aoyama, Michio Hamajima, Yasunori Oka, Eitarou Murata, Akihiko J Radioanal Nucl Chem Article In 2015–2017, we measured activity concentration of radiocesium in the western subtropical gyre of the North Pacific Ocean and revealed the time evolution of radiocesium derived from the Fukushima Dai-ichi Nuclear Power Plant (FNPP1) accident between 2011 and 2017. The FNPP1-derived radiocesium deposited on the area south of the Kuroshio/Kuroshio Extension Currents in March 2011 was transported southward and westward through subsurface layers due to subduction of the subtropical mode water. In 2014, the radiocesium in the subsurface layers returned to the north and circulated within the Kuroshio recirculation area. Then in 2015–2017, the radiocesium re-circulated with the area. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s10967-018-6133-5) contains supplementary material, which is available to authorized users. Springer International Publishing 2018-08-21 2018 /pmc/articles/PMC6267151/ /pubmed/30546188 http://dx.doi.org/10.1007/s10967-018-6133-5 Text en © The Author(s) 2018 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Article
Kumamoto, Yuichiro
Aoyama, Michio
Hamajima, Yasunori
Oka, Eitarou
Murata, Akihiko
Time evolution of Fukushima-derived radiocesium in the western subtropical gyre of the North Pacific Ocean by 2017
title Time evolution of Fukushima-derived radiocesium in the western subtropical gyre of the North Pacific Ocean by 2017
title_full Time evolution of Fukushima-derived radiocesium in the western subtropical gyre of the North Pacific Ocean by 2017
title_fullStr Time evolution of Fukushima-derived radiocesium in the western subtropical gyre of the North Pacific Ocean by 2017
title_full_unstemmed Time evolution of Fukushima-derived radiocesium in the western subtropical gyre of the North Pacific Ocean by 2017
title_short Time evolution of Fukushima-derived radiocesium in the western subtropical gyre of the North Pacific Ocean by 2017
title_sort time evolution of fukushima-derived radiocesium in the western subtropical gyre of the north pacific ocean by 2017
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6267151/
https://www.ncbi.nlm.nih.gov/pubmed/30546188
http://dx.doi.org/10.1007/s10967-018-6133-5
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