Characteristics of disturbances in the atmosphere and oceans
- 28 Downloads
The characteristics of the disturbances in the atmosphere and oceans and in other stably stratified and rotating fluids are analyzed according to their phase and group velocities. It is shown that both stable stratification and rotation augment the velocity of the sound waves, and that the internal gravity waves and inertial waves are mutually exclusive when the Brunt-Väisälä frequency is different from the Coriolis parameter. It is also shown that both the barotropic and the internal Rossby waves are well separated from the gravity waves and that they can be represented accurately by the quasi-geostrophic potential vorticity equation, even close to the equator, except for the one member withn=0 which is coupled with an eastward propagating gravity wave.
Key wordsAtmosphere, waves in ocean, waves in
Unable to display preview. Download preview PDF.
- Eckart, C.,Hydrodynamics of Oceans and Atmosphere (Pergamon Press, New York, 1960), 290 pp.Google Scholar
- Haurwitz, B. (1940),The motion of atmospheric disturbances, J. Mar. Res.3, 254–267.Google Scholar
- Kuo, H. L. (1973),Dynamics of quasigeostrophic flows and instability theory, Adv. Appl. Mech.13, 247–330.Google Scholar
- Lindzen, R. S. (1967)Planetary waves on beta-planes, Mon. Wea. Rev.95, 441–451.Google Scholar
- Matsuno, T. (1966),Quasi-geostrophic motions in the equatorial area, J. Meteor. Soc. Japan44, 25–43.Google Scholar