Articles | Volume 13, issue 3
Ocean Sci., 13, 453–463, 2017
Ocean Sci., 13, 453–463, 2017

Research article 14 Jun 2017

Research article | 14 Jun 2017

Lagrangian simulation and tracking of the mesoscale eddies contaminated by Fukushima-derived radionuclides

Sergey V. Prants et al.

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Cited articles

Aoyama, M., Uematsu, M., Tsumune, D., and Hamajima, Y.: Surface pathway of radioactive plume of TEPCO Fukushima NPP1 released 134Cs and 137Cs, Biogeosciences, 10, 3067–3078,, 2013.
Budyansky, M. V., Uleysky, M. Y., and Prants, S. V.: Detection of barriers to cross-jet Lagrangian transport and its destruction in a meandering flow, Phys. Rev. E, 79, 056215,, 2009.
Budyansky, M. V., Goryachev, V. A., Kaplunenko, D. D., Lobanov, V. B., Prants, S. V., Sergeev, A. F., Shlyk, N. V., and Uleysky, M. Y.: Role of mesoscale eddies in transport of Fukushima-derived cesium isotopes in the ocean, Deep-Sea Res. Pt. I, 96, 15–27,, 2015.
Buesseler, K. O., Jayne, S. R., Fisher, N. S., Rypina, I. I., Baumann, H., Baumann, Z., Breier, C. F., Douglass, E. M., George, J., Macdonald, A. M., Miyamoto, H., Nishikawa, J., Pike, S. M., and Yoshida, S.: Fukushima-derived radionuclides in the ocean and biota off Japan, P. Natl. Acad. Sci. USA, 109, 5984–5988,, 2012.
Haller, G.: Lagrangian Coherent Structures, Annual Rev. Fluid Mech., 47, 137–162,, 2015.
Short summary
A Lagrangian method is developed to track, document and analyze the 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 of being contaminated by radionuclides. The simulated results are shown to be in a good qualitative correspondence with in situ measurements.