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Ocean Science An interactive open-access journal of the European Geosciences Union

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doi:10.5194/os-2016-103
© Author(s) 2017. This work is distributed
under the Creative Commons Attribution 3.0 License.
Research article
25 Jan 2017
Review status
A revision of this discussion paper is under review for the journal Ocean Science (OS).
Lagrangian simulation and tracking of the mesoscale eddies contaminated by Fukushima-derived radionuclides
Sergey V. Prants, Maxim V. Budyansky, and Michael Yu. Uleysky Laboratory of Nonlinear Dynamical Systems, Pacific Oceanological Institute of the Russian Academy of Sciences, 43 Baltiyskaya st., 690041 Vladivostok, Russia
Abstract. A Lagrangian methodology is elaborated to simulate, track, document and analyze origin and history of water masses in ocean mesoscale features. It is aimed to distinguish water masses inside the mesoscale eddies originated from the main currents in the Kuroshio–Oyashio confluence zone. Computing trajectories for a large number of synthetic tracers advected by the AVISO velocity field after the Fukushima accident, we identify and track the mesoscale eddies which have been sampled in the cruises in 2011 and 2012 and estimate their risk to be contaminated by Fukushima-derived radionuclides. The simulated results are compared with in situ measurements to be in a good qualitative correspondence.

Citation: Prants, S. V., Budyansky, M. V., and Uleysky, M. Yu.: Lagrangian simulation and tracking of the mesoscale eddies contaminated by Fukushima-derived radionuclides, Ocean Sci. Discuss., doi:10.5194/os-2016-103, in review, 2017.
Sergey V. Prants et al.
Sergey V. Prants et al.
Sergey V. Prants et al.

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Short summary
A Lagrangian method is elaborated to track, document and analyze origin and history of water masses in ocean features. Simulating synthetic tracers in the altimetry-derived velocity field, we identify and track the mesoscale eddies which have been sampled in the cruises after the Fukushima accident and estimate their risk to be contaminated by radionuclides. The simulated results are compared with in situ measurements to be in a good qualitative correspondence.
A Lagrangian method is elaborated to track, document and analyze origin and history of water...
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