Articles | Volume 13, issue 3
Ocean Sci., 13, 453–463, 2017
https://doi.org/10.5194/os-13-453-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Ocean Sci., 13, 453–463, 2017
https://doi.org/10.5194/os-13-453-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
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.
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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...
