Nonlinear evolution of linearly unstable barotropic boundary currents

Journal of Physical Oceanography

Volumn 27, Issue 7, 1997, Pages 1326-1348

  Shimada, Koji ^a,b   Kubokawa, Atsushi ^a,c  

^a KYUSHU UNIVERSITY   (Japan)

^b JAPAN AGENCY FOR MARINE EARTH SCIENCE AND TECHNOLOGY   (Japan)

^c HOKKAIDO UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

BAROTROPIC INSTABILITY; BOUNDARY CURRENTS; NONLINEAR EVOLUTION;

EID: 0031450733     PISSN: 00223670     EISSN: None     Source Type: Journal    
DOI: 10.1175/1520-0485(1997)027<1326:NEOLUB>2.0.CO;2     Document Type: Article

References (31)

1. Acton, E., 1976: The modelling of large eddies in a two-dimensional shear layer. J. Fluid Mech., 76, 561-592.
2. Aref, H., 1979: Motion of three vortices. Phys. Fluids, 22, 393-400.
3. Batchelor, G. K., 1970: An Introduction to Fluid Dynamics. Cambridge University Press, 615 pp.
4. Dritschel, D. G., 1988: Contour surgery: A topological reconnection scheme for extended integrations using contour dynamics. J. Comput. Phys., 77, 240-266.
5. Funakoshi, M., 1995: Evolution of vorticity regions of Kármán-vortex-street type. Fluid Dyn. Res., 15, 251-269.
6. Gryanik, V. M., 1983: Dynamics of singular geostrophic vortices in a two-level model of the atmosphere (or ocean). (Bull. Acad. Sci. USSR.) Atmos. Oceanic Phys., 19, 171-179.
7. Helfrich, K. R., and U. Send, 1988: Finite-amplitude evolution of two-layer geostrophic vortices. J. Fluid Mech., 197, 331-348.
8. Hogg, N. G., and H. M. Stommel, 1985a: The heton, an elementary interaction between discrete baroclinic geostrophic vortices, and its implications concerning eddy heat-flow. Proc. Roy. Soc. London, A397, 1-20.
9. _, and _, 1985b: Hetonic explosion: The breakup and spread of warm pools as explained by baroclinic point vortices. J. Phys. Oceanogr., 15, 1465-1476.
10. Ikeda, M., and W. J. Emery, 1984: Satellite observations and modeling of meanders in the California Current system off Oregon and northern California. J. Phys. Oceanogr., 14, 1434-1450.
11. _, _, and L. A. Mysak, 1984a: Seasonal variability in meanders of the California Current system off Vancouver Island. J. Geophys. Res., 89, 3487-3505.
12. _, L. A. Mysak, and W. J. Emery, 1984b: Observation and modeling of satellite-sensed meanders and eddies off Vancouver Island. J. Phys. Oceanogr., 14, 3-21.
13. Kubokawa, A., 1988: Instability and nonlinear evolution of a density-driven coastal current with a surface front in a two layer ocean. Geophys. Astrophys. Fluid Dyn., 40, 195-223.
14. _, 1991: On the behavior of outflows with low potential vorticity from a sea strait. Tellus, 43A, 168-176.
15. Legg, S., and J. Marshall, 1993: A heton model of the spreading phase of open-ocean deep convection. J. Phys. Oceanogr., 23, 1040-1056.
16. McCreary, J. P., Y. Fukamachi, and P. K. Kundu, 1991: A numerical investigation of jets and eddies near eastern ocean boundary. J. Geophys. Res., 96, 2515-2534.
17. Novikov, E. A., 1975: Dynamics and statistics of a system of vortices. Sov. Phys. JTEP, 41, 937-943.
18. Ohshima, K. I., and M. Wakatsuchi, 1990: A numerical study of barotropic instability associated with Soya Warm Current in the Sea of Okhotsk. J. Phys. Oceanogr., 20, 570-584.
19. Polvani, L. M., 1991: Two-layer geostrophic vortex dynamics. Part 2. Alignment and two-layer V-state. J. Fluid Mech., 225, 241-270.
20. _, N. J. Zabusky, and G. R. Flierl, 1989: Two-layer geostrophic vortex dynamics. Part 1. Upper-layer V-state and merger. J. Fluid Mech., 205, 215-242.
21. Pratt, L. J., and M. E. Stern, 1986: Dynamics of potential vorticity fronts and eddy detachment. J. Phys. Oceanogr., 16, 1101-1120.
22. _, and J. Pedlosky, 1991: Linear and nonlinear barotropic instability of geostrophic shear layers. J. Fluid Mech., 224, 49-76.
23. Pullin, D. J., 1981: The nonlinear behaviour of a constant vorticity layer at a wall. J. Fluid Mech., 108, 401-421.
24. Seung, Y. H., and J.-H. Yoon, 1995: Robust diagnostic modeling of the Japan Sea circulation. J. Oceanogr., 51, 421-440.
25. Stern, M. E., 1986: On the amplification of the convergences in coastal currents and the formation of "squirts." J. Mar. Res., 44, 403-421.
26. _, and L. J. Pratt, 1985: Dynamics of vorticity fronts. J. Fluid Mech., 161, 513-532.
27. Strub, P. T., P. M. Kosro, and A. Huyer, 1991: The nature of the cold filaments in the California Current system. J. Geophys. Res., 96, 14 743-14 768.
28. Wakatsuchi, M., and K. I. Ohshima, 1990: Observation of ice-ocean eddy street off Hokkaido coast in the Sea of Okhotsk through radar images. J. Phys. Oceanogr., 20, 585-594.
29. Waugh, D. W., and D. G. Dritschel, 1991: The stability of filamentary vorticity in two-dimensional geophysical vortex-dynamics models. J. Fluid Mech., 231, 575-598.
30. Wu, H. M., E. A. Overman, and N. J. Zabusky, 1984: Steady-state solutions of the Euler equations in two dimensions: Rotating and translating V-states with limiting cases. I. Numerical algorithms and results. J. Comput. Phys., 53, 42-71.
31. Zabusky, N. J., M. Hughes, and K. V. Roberts, 1979: Contour dynamics for the Euler equations in two dimensions. J. Comput. Phys., 30, 96-106.