Spontaneous generation of inertia-gravity wave packets by balanced geophysical flows

Journal of Fluid Mechanics

Volumn 553, Issue , 2006, Pages 107-117

  Viúdez, Álvaro ^a   Dritschel, David G ^b  

^a INSTITUT DE CIÈNCIES DEL MAR   (Spain)

^b UNIVERSITY OF ST ANDREWS   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

JETS; NUMERICAL ANALYSIS; ROTATIONAL FLOW; VELOCITY; VORTEX FLOW; WAVE TRANSMISSION;

ANTICYCLONIC VORTICES; BAROCLINIC JET; GEOPHYSICAL FLOW; OPTIMAL POTENTIAL VORTICITY BALANCE APPROACH; SPATIAL RESOLUTION; THREE-DIMENSIONAL HELICAL STRUCTURE; WAVE PACKET EMISSION;

GRAVITY WAVES;

GRAVITY WAVES; JETS; NUMERICAL ANALYSIS; ROTATIONAL FLOW; VELOCITY; VORTEX FLOW; WAVE TRANSMISSION;

GRAVITY WAVE; JET FLOW; WAVE GENERATION; WAVE PROPAGATION;

EID: 33645684630     PISSN: 00221120     EISSN: 14697645     Source Type: Journal    
DOI: 10.1017/S0022112005008311     Document Type: Article

References (21)

1. Bokhove, O. & Sheperd, T. G. 1996 On Hamiltonian balanced dynamics and the slowest invariant manifold. J. Atmos. Sci. 53, 276-297.
2. Camassa, R. & Tin, S.-K. 1996 The global geometry of the slow manifold in the Lorenz-Krishnamurthy model. J. Atmos. Sci. 53, 3251-3264.
3. Dritschel, D. G. & Viúdez, A. 2003 A balanced approach to modelling rotating stably stratified geophysical flows. J. Fluid Mech. 488, 123-150.
4. Dritschel, D. G. & Viúdez, A. 2005 The persistence of balance in geophysical flows. J. Fluid Mech. (submitted).
5. Ford, R., McIntyre, M. E. & Norton, W. A. 2000 Balance and the slow quasimanifold: Some explicit results. J. Atmos. Sci. 57, 1236-1254.
6. Griffiths, M. & Reeder, M. J. 1996 Stratospheric inertia-gravity waves generated in a numerical model of frontogenesis. I: Model solutions. Q. J. R. Met. Soc. 122, 1153-1174.
7. Lane, T. P., Doyle, J. D., Plougonven, R., Shapiro, M. A. & Sharman, R. D. 2004 Observations and numerical simulations of inertia gravity waves and shearing instabilities in the vicinity of a jet stream. J. Atmos. Sci. 61, 2692-2706.
8. Lorenz, E. N. & Krishnamurthy, V. 1987 On the nonexistence of a slow manifold. J. Atmos. Sci. 44, 2940-2950.
9. O'Sullivan, D. & Dunkerton, T. J. 1995 Generation of inertia-gravity waves in a simulated life cycle of baroclinic instability. J. Atmos. Sci. 52, 3695-3716.
10. Plougonven, R., Teitelbaum, H. & Zeitlin, V. 2003 Inertia gravity wave generation by the tropospheric midlatitude jet as given by the Fronts and Atlantic Storm-Track Experiment radio sounding. J. Geophys. Res.-Atmos. 108, doi:10.1029/2003JD003535.
11. Plougonven, R. & Zeitlin, V. 2002 Internal gravity wave emission from a pancake vortex: An example of wave-vortex interaction in strongly stratified flows. Phys. Fluids 14, 1259-1268.
12. Saujani, S. & Sheperd, T. G. 2002 Comments on 'Balance and the slow quasimanifold: Some explicit results'. J. Atmos. Sci. 59, 2874-2877. Reply: Ford, R., McIntyre, M. E. & Norton, W. A. 2000 J. Atmos. Sci. 59, 2878-2882.
13. Snyder, C., Skamarock, W. C. & Rotunno, R. 1993 Frontal dynamics near and following frontal collapse. J. Atmos. Sci. 50, 3194-3211.
14. Vanneste, J. 2004 Inertia-gravity wave generation by balanced motion: revisiting the Lorenz-Krishnamurthy model. J. Atmos. Sci. 61, 224-234.
15. Vanneste, J. & Yavneh, I. 2004 Exponentially small inertia-gravity waves and the breakdown of quasigeostrophic balance. J. Atmos. Sci. 61, 211-223.
16. Viúdez, A. & Dritschel, D. G. 2003 Vertical velocity in mesoscale geophysical flows. J. Fluid Mech. 483, 199-223.
17. Viúdez, A. & Dritschel, D. G. 2004a Potential vorticity and the quasigeostrophic and semigeostrophic mesoscale vertical velocity. J. Phys. Oceanogr. 34, 865-887.
18. Viúdez, A. & Dritschel, D. G. 2004b Dynamic potential vorticity initialization and the diagnosis of mesoscale motion. J. Phys. Oceanogr. 34, 2761-2773.
19. Viúdez, A. & Dritschel, D. G. 2004c Optimal potential vorticity balance of geophysical flows. J. Fluid Mech. 521, 343-352.
20. Warn, T. 1997 Nonlinear balance and quasi-geostrophic sets. Atmos. Ocean 35, 135-145.
21. Zhang, F. 2004 Generation of mesoscale gravity waves in upper-tropospheric jet-front systems. J. Atmos. Sci. 61, 440-457.