The timescales analysis of long-term variability of oceanic circulation forced by the stationary wind in a two-layer ocean

A.B. Fedotov

Institute of Natural and Technical Systems, Russian Federation, Sevastopol, Lenin St., 28

E-mail: fedotov57@mail.ru

DOI: 10.33075/2220-5861-2017-4-96-101

UDC 551.465.553

Abstract:

   Using numerical simulation of two-layer ocean with the layer depths corresponding to real oceanic conditions under the outer stationary vorticity flux and constant dissipation factors the investigation of the development of a large-scale circulation has been provided. There have been analyzed the timescales characters of large-scale circulation oscillation.

Кeywords: synoptic variability, large-scale variability, wind-forced currents.

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LIST OF REFERENCES

1. Kondrashev D., Berloff P.(2015) Stochastic modeling of decadal variability in ocean gyres // Geophysical Research Letters, 42, 1–14. doi:10.1002/2014GL062871.
2. Treguier A.M. et al. Meridional transport of salt in the global ocean from an eddy-resolving model // Ocean Sci. 2014, 10, P. 243–255.
3. Gula J., Molemaker M.J., McWilliams J.C. Gulf stream dynamics along the southeastern u.s. seaboards // J. Phys. Oceanogr., 2015, 45 (3), P. 690–715.
4. Shevchenko Igor, Berloff Pavel. On the role of baroclinic modes in eddy-resolving midlatitude ocean dynamics // Ocean Modelling, 111 (2017), P. 55–65.
5. Rhines P.B. Geostrophic turbulence // Ann. Rev. Fluid Mech. 1979. V. 11. P. 401– 441.
6. Arakawa A. Computational design of longterm numerical integration of the equations of fluid motion. 1. Two-dimensional incompressible flow // Journal of Comput. Physics. V. 1. № 1. P. 119–143.
7. Ларичев В.Д., Федотов А.Б. Явление самоорганизации в геострофической турбулентности на β-плоскости // Доклады АН СССР, 1988. Т. 298. № 4. C. 971–975.
8. Роуч П. Вычислительная гидродинамика. М.: Мир, 1980. 618 с.
9. Кorotaev G.K., Fedotov A.B. Dynamics of an isolated barotropic eddy on a betaplane. // J. Fluid Mech., 1994, vol. 264. P. 277–301.