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.
Related authors
Sergey Prants, Andrey Andreev, Michael Uleysky, and Maxim Budyansky
Biogeosciences Discuss., https://doi.org/10.5194/bg-2017-477, https://doi.org/10.5194/bg-2017-477, 2018
Manuscript not accepted for further review
Short summary
Short summary
We demonstrate the transport pathways of Alaskan Stream water in the eastern subarctic Pacific and the eastern Bering Sea from October 1, 1994 to September 12, 2016 with the help of altimetry-based Lagrangian maps. A mesoscale eddy activity in the Alaskan Stream region and the eastern Bering Sea is shown to be relatedwith the wind stress curl in winter. The mesoscale dynamics may determine not only lower-trophic-level organism biomass but also salmon abundance/catch in the study area.
Sergey V. Prants, Maxim V. Budyansky, and Michael Yu. Uleysky
Nonlin. Processes Geophys., 24, 89–99, https://doi.org/10.5194/npg-24-89-2017, https://doi.org/10.5194/npg-24-89-2017, 2017
Short summary
Short summary
Transport of subtropical waters in the Japan Sea is simulated based on altimeter data. Preferred transport pathways across the Subpolar Front are found.
The cross-frontal transport is shown to be inhomogeneous with gates and barriers whose locations are determined by a local velocity field. The gates open due to suitable dispositions of mesoscale eddies facilitating propagation of subtropical waters to the north. There are forbidden zones where the northward transport has not been observed.
S. V. Prants, M. V. Budyansky, and M. Yu. Uleysky
Nonlin. Processes Geophys., 21, 279–289, https://doi.org/10.5194/npg-21-279-2014, https://doi.org/10.5194/npg-21-279-2014, 2014
Sergey Prants, Andrey Andreev, Michael Uleysky, and Maxim Budyansky
Biogeosciences Discuss., https://doi.org/10.5194/bg-2017-477, https://doi.org/10.5194/bg-2017-477, 2018
Manuscript not accepted for further review
Short summary
Short summary
We demonstrate the transport pathways of Alaskan Stream water in the eastern subarctic Pacific and the eastern Bering Sea from October 1, 1994 to September 12, 2016 with the help of altimetry-based Lagrangian maps. A mesoscale eddy activity in the Alaskan Stream region and the eastern Bering Sea is shown to be relatedwith the wind stress curl in winter. The mesoscale dynamics may determine not only lower-trophic-level organism biomass but also salmon abundance/catch in the study area.
Sergey V. Prants, Maxim V. Budyansky, and Michael Yu. Uleysky
Nonlin. Processes Geophys., 24, 89–99, https://doi.org/10.5194/npg-24-89-2017, https://doi.org/10.5194/npg-24-89-2017, 2017
Short summary
Short summary
Transport of subtropical waters in the Japan Sea is simulated based on altimeter data. Preferred transport pathways across the Subpolar Front are found.
The cross-frontal transport is shown to be inhomogeneous with gates and barriers whose locations are determined by a local velocity field. The gates open due to suitable dispositions of mesoscale eddies facilitating propagation of subtropical waters to the north. There are forbidden zones where the northward transport has not been observed.
S. V. Prants, M. V. Budyansky, and M. Yu. Uleysky
Nonlin. Processes Geophys., 21, 279–289, https://doi.org/10.5194/npg-21-279-2014, https://doi.org/10.5194/npg-21-279-2014, 2014
Related subject area
Depth range: Surface | Approach: Numerical Models | Geographical range: Deep Seas: North Pacific | Phenomena: Current Field
A comparison of ocean model data and satellite observations of features affecting the growth of the North Equatorial Counter Current during the strong 1997–1998 El Niño
David J. Webb, Andrew C. Coward, and Helen M. Snaith
Ocean Sci., 16, 565–574, https://doi.org/10.5194/os-16-565-2020, https://doi.org/10.5194/os-16-565-2020, 2020
Short summary
Short summary
In conflict with conventional theory, recent analysis of data from a high-resolution global ocean model showed that the North Equatorial Counter Current was responsible for the unusually warm water which triggered the strong El Niños of 1982–83 and 1997–98. In this paper some of the key physics deduced from the model results are tested against satellite data from the 1997–98 event. The results show that the model closely followed reality during the period, further supporting the new mechanisms.
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, https://doi.org/10.5194/bg-10-3067-2013, 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, https://doi.org/10.1103/physreve.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, https://doi.org/10.1016/j.dsr.2014.09.007, 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, https://doi.org/10.1073/pnas.1120794109, 2012.
Haller, G.: Lagrangian Coherent Structures, Annual Rev. Fluid Mech., 47, 137–162, https://doi.org/10.1146/annurev-fluid-010313-141322, 2015.
Haza, A. C., Özgökmen, T. M., Griffa, A., Molcard, A., Poulain, P.-M., and Peggion, G.: Transport properties in small-scale coastal flows: relative dispersion from VHF radar measurements in the Gulf of La Spezia, Ocean Dynam., 60, 861–882, https://doi.org/10.1007/s10236-010-0301-7, 2010.
Honda, M. C., Aono, T., Aoyama, M., Hamajima, Y., Kawakami, H., Kitamura, M., Masumoto, Y., Miyazawa, Y., Takigawa, M., and Saino, T.: Dispersion of artificial caesium-134 and -137 in the western North Pacific one month after the Fukushima accident, Geochem. J., 46, e1–e9, 2012.
Huntley, H. S., Lipphardt, B. L., and Kirwan, A. D.: Monitoring and Modeling the Deepwater Horizon Oil Spill: A Record-Breaking Enterprise, chap. Surface Drift Predictions of the Deepwater Horizon Spill: The Lagrangian Perspective, 179–195, American Geophysical Union, Washington, D. C., https://doi.org/10.1029/2011GM001097, 2011.
Inoue, M., Kofuji, H., Hamajima, Y., Nagao, S., Yoshida, K., and Yamamoto, M.: 134Cs and 137Cs activities in coastal seawater along Northern Sanriku and Tsugaru Strait, northeastern Japan, after Fukushima Dai-ichi Nuclear Power Plant accident, J. Environ. Radioactiv., 111, 116–119, https://doi.org/10.1016/j.jenvrad.2011.09.012, 2012a.
Inoue, M., Kofuji, H., Nagao, S., Yamamoto, M., Hamajima, Y., Yoshida, K., Fujimoto, K., Takada, T., and Isoda, Y.: Lateral variation of 134Cs and 137Cs concentrations in surface seawater in and around the Japan Sea after the Fukushima Dai-ichi Nuclear Power Plant accident, J. Environ. Radioactiv., 109, 45–51, https://doi.org/10.1016/j.jenvrad.2012.01.004, 2012b.
Kaeriyama, H., Ambe, D., Shimizu, Y., Fujimoto, K., Ono, T., Yonezaki, S., Kato, Y., Matsunaga, H., Minami, H., Nakatsuka, S., and Watanabe, T.: Direct observation of 134Cs and 137Cs in surface seawater in the western and central North Pacific after the Fukushima Dai-ichi nuclear power plant accident, Biogeosciences, 10, 4287–4295, https://doi.org/10.5194/bg-10-4287-2013, 2013.
Kaeriyama, H., Shimizu, Y., Ambe, D., Masujima, M., Shigenobu, Y., Fujimoto, K., Ono, T., Nishiuchi, K., Taneda, T., Kurogi, H., Setou, T., Sugisaki, H., Ichikawa, T., Hidaka, K., Hiroe, Y., Kusaka, A., Kodama, T., Kuriyama, M., Morita, H., Nakata, K., Morinaga, K., Morita, T., and Watanabe, T.: Southwest Intrusion of 134Cs and 137Cs Derived from the Fukushima Dai-ichi Nuclear Power Plant Accident in the Western North Pacific, Environ. Sci. Technol., 48, 3120–3127, https://doi.org/10.1021/es403686v, 2014.
Kameník, J., Dulaiova, H., Buesseler, K. O., Pike, S. M., and Št'astná, K.: Cesium-134 and 137 activities in the central North Pacific Ocean after the Fukushima Dai-ichi Nuclear Power Plant accident, Biogeosciences, 10, 6045–6052, https://doi.org/10.5194/bg-10-6045-2013, 2013.
Kawai, H.: Hydrography of the Kuroshio Extension, in: Kuroshio: Physical Aspects of the Japan Current, edited by: Stommel, H. M. and Yoshida, K., University of Washington Press, Seattle, 235–352, 1972.
Koshel', K. V. and Prants, S. V.: Chaotic advection in the ocean, Physics-Uspekhi, 49, 1151–1178, https://doi.org/10.1070/PU2006v049n11ABEH006066, 2006.
Kumamoto, Y., Aoyama, M., Hamajima, Y., Aono, T., Kouketsu, S., Murata, A., and Kawano, T.: Southward spreading of the Fukushima-derived radiocesium across the Kuroshio Extension in the North Pacific, Scientific Reports, 4, 1–9, https://doi.org/10.1038/srep04276, 2014.
Mancho, A. M., Small, D., and Wiggins, S.: A tutorial on dynamical systems concepts applied to Lagrangian transport in oceanic flows defined as finite time data sets: Theoretical and computational issues, Phys. Rep., 437, 55–124, https://doi.org/10.1016/j.physrep.2006.09.005, 2006.
Mezić, I., Loire, S., Fonoberov, V. A., and Hogan, P.: A New Mixing Diagnostic and Gulf Oil Spill Movement, Science, 330, 486–489, https://doi.org/10.1126/science.1194607, 2010.
Nencioli, F., d'Ovidio, F., Doglioli, A. M., and Petrenko, A. A.: Surface coastal circulation patterns by in-situ detection of Lagrangian coherent structures, Geophys. Res. Lett., 38, L17604, https://doi.org/10.1029/2011gl048815, 2011.
Oikawa, S., Takata, H., Watabe, T., Misonoo, J., and Kusakabe, M.: Distribution of the Fukushima-derived radionuclides in seawater in the Pacific off the coast of Miyagi, Fukushima, and Ibaraki Prefectures, Japan, Biogeosciences, 10, 5031–5047, https://doi.org/10.5194/bg-10-5031-2013, 2013.
Olascoaga, M. J. and Haller, G.: Forecasting sudden changes in environmental pollution patterns, P. Natl. Acad. Sci. USA, 109, 4738–4743, https://doi.org/10.1073/pnas.1118574109, 2012.
Olascoaga, M. J., Beron-Vera, F. J., Haller, G., Triñanes, J., Iskandarani, M., Coelho, E. F., Haus, B. K., Huntley, H. S., Jacobs, G., Kirwan, A. D., Lipphardt, B. L., Özgökmen, T. M., Reniers, A. J. H. M., and Valle-Levinson, A.: Drifter motion in the Gulf of Mexico constrained by altimetric Lagrangian coherent structures, Geophys. Res. Lett., 40, 6171–6175, https://doi.org/10.1002/2013gl058624, 2013.
Povinec, P. P., Hirose, K., and Aoyama, M.: Fukushima Accident: Radioactivity Impact on the Environment, Elsevier, Amsterdam, https://doi.org/10.1016/B978-0-12-408132-1.01001-9, 2013.
Prants, S. V.: Dynamical systems theory methods to study mixing and transport in the ocean, Phys. Scripta, 87, 038115, https://doi.org/10.1088/0031-8949/87/03/038115, 2013.
Prants, S. V.: Chaotic Lagrangian transport and mixing in the ocean, The European Physical Journal Special Topics, 223, 2723–2743, https://doi.org/10.1140/epjst/e2014-02288-5, 2014.
Prants, S. V., Budyansky, M. V., Ponomarev, V. I., and Uleysky, M. Y.: Lagrangian study of transport and mixing in a mesoscale eddy street, Ocean Model., 38, 114–125, https://doi.org/10.1016/j.ocemod.2011.02.008, 2011a.
Prants, S. V., Uleysky, M. Y., and Budyansky, M. V.: Numerical simulation of propagation of radioactive pollution in the ocean from the Fukushima Dai-ichi nuclear power plant, Dokl. Earth Sci., 439, 1179–1182, https://doi.org/10.1134/S1028334X11080277, 2011b.
Prants, S. V., Ponomarev, V. I., Budyansky, M. V., Uleysky, M. Y., and Fayman, P. A.: Lagrangian analysis of mixing and transport of water masses in the marine bays, Izvestiya, Atmos. Ocean. Phys., 49, 82–96, https://doi.org/10.1134/S0001433813010088, 2013.
Prants, S. V., Budyansky, M. V., and Uleysky, M. Yu.: Lagrangian study of surface transport in the Kuroshio Extension area based on simulation of propagation of Fukushima-derived radionuclides, Nonlin. Processes Geophys., 21, 279–289, https://doi.org/10.5194/npg-21-279-2014, 2014.
Prants, S. V., Lobanov, V. B., Budyansky, M. V., and Uleysky, M. Y.: Lagrangian analysis of formation, structure, evolution and splitting of anticyclonic Kuril eddies, Deep-Sea Res. Pt. I, 109, 61–75, https://doi.org/10.1016/j.dsr.2016.01.003, 2016.
Samelson, R. M. and Wiggins, S.: Lagrangian Transport in Geophysical Jets and Waves: The Dynamical Systems Approach, vol. 31 of Interdisciplinary Applied Mathematics, Springer Science+Business Media, LLC, https://doi.org/10.1007/978-0-387-46213-4, 2006.
Tsumune, D., Tsubono, T., Aoyama, M., and Hirose, K.: Distribution of oceanic 137Cs from the Fukushima Dai-ichi Nuclear Power Plant simulated numerically by a regional ocean model, J. Environ. Radioactiv., 111, 100–108, https://doi.org/10.1016/j.jenvrad.2011.10.007, 2012.
Tsumune, D., Tsubono, T., Aoyama, M., Uematsu, M., Misumi, K., Maeda, Y., Yoshida, Y., and Hayami, H.: One-year, regional-scale simulation of 137Cs radioactivity in the ocean following the Fukushima Dai-ichi Nuclear Power Plant accident, Biogeosciences, 10, 5601–5617, https://doi.org/10.5194/bg-10-5601-2013, 2013.
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.
A Lagrangian method is developed to track, document and analyze the origin and history of water...