|Other titles||Rossby waves.|
|The Physical Object|
|Number of Pages||47|
The primitive hydrostatic equations for a rectangular homogeneous ocean with a free surface on a -plane are integrated numerically for 60 days from an initial state of rest and undisturbed depth of m. A zonal wind stress (maximum 2 dyn cm2) and a lateral eddy viscosity ( cm2 sec1) are assumed. A series of transient Rossby waves Cited by: 3 Momentum Transport in Rossby Waves It turns out that Rossby waves will transport momentum from place to place, and this is why we have surface winds! (Well, at least it is an explication of why we have surface winds. Other explications that don't involve Rossby waves can be given (Vallis, ), but they are all really the same explanation.). The time-dependent primitive equations for a shallow homogeneous ocean with a free surface are solved for a bounded basin on W. L. Gates,A numerical study of transient Rossby waves in a wind-driven homogeneous ocean, J. Atmos. Sci ( J. Pedlosky,A study of the time dependent ocean circulation., J. Atmos. Sci (), – Cited by: 3. Dispersion Relation for Rossby Waves 0 kR 0 1 2 lR 0 w/(bR) Properties of Rossby Waves • k Rossby waves have phase speed west (not east) or south-west or north-west • the group velocity can be either east or west • long waves have group velocity to the west.
NUMERICAL COMPUTATION OF TRANSIENT AND STEADY-STATE PERIODIC THERMAL WAVE DISTRIBUTION IN HOMOGENEOUS MEDIA , S.K. Lau and D.P. Almond School of Materials Science University of Bath Bath, Avon, England, BA2 7 A Y INTRODUCTION Thermal wave inspection techniques utilise controlled heat diffusion to probe the. The present study explores both the stochastic scenario and the coupled ocean–atmosphere scenario, utilizing a reduced-gravity model to study the low-frequency variability of the classical rectangular basin. The reduced-gravity approximation is considered to be the simplest conceptional representation of the real ocean; it includes Rossby wave dynamics and shear-flow . Journal of Computational Physics, 5, CROWLEY W. () A numerical model for a viscous non-divergent barotropic wind driven ocean circulation. Journal of Computational Physics, 6, GATES W. () A numerical study of transient Rossby waves in a wind driven homogeneous ocean. Journal of Atmospheric Science, 25, In the ocean, mid-latitude 'blobs' (eddies) are only of order km across, so c~ 2cms-1 or kmday-1 - Since zonal currents tend to be smaller than this, blobs mostly move westward at this speed ROSSBY WAVES TRAVEL FASTEST NEAR THE EQUATOR, as B is largest and f is smallest there.
Traveling waves are, however, also observed, for example before the SSW event (Madden & Labitzke, ). Traveling waves have in addition been linked to resonant behavior before SSW events (e.g., Geisler, ; Plumb, ). The aim of this study is to elucidate the role of traveling Rossby waves for the Northern Hemisphere winter. W. L. GATES, A numerical study of transient Rossby-waves in a wind-driven homogeneous ocean, J. Atmos. Sei. 25 (), R. FJ0RTOFT, On the changes in the spectral distribution of kinetic energy for two-dimensional, nondivergent flow, Tellus 5 (), thermocline ridge in the tropical SW Indian Ocean (S, 60–E), where wind stress curl is important. Anomalous winds in the equatorial east Indian Ocean force successive Rossby waves westward at speeds of ms %. With a wavelength of km, the period of oscillation is in the range – years. The Indian Ocean Rossby wave is. Biannual Rossby waves have been studied in the equatorial Indian Ocean by several authors (e.g. Gent and Cane, ;Han et al., ;Hase et al., ; Jensen, ; Luyten and Roemmich,