If one assumes that the Coriolis coefficient " f " is constant along the right boundary conditions and the zonal wind speed is set equal to zero, then the primitive equations become the following:
12.
Time & ndash; height plot of monthly-mean, zonal-mean equatorial zonal wind ( " u " ) in m / s between about 20 and altitude above sea level over a ten-year period.
13.
This indeed happened in 2007 when Uranus passed an equinox : a faint northern polar collar arose, whereas the southern collar became nearly invisible, although the zonal wind profile remained asymmetric, with northern winds being slightly slower than southern.
14.
This indeed happened in 2007 when it passed an equinox : a faint northern polar collar arose, and the southern collar became nearly invisible, although the zonal wind profile remained slightly asymmetric, with northern winds being somewhat slower than southern.
15.
Hence further upward transfer of energy is completely blocked and a very rapid easterly deceleration and the polar warming occur at this critical level, which must then move downward until eventually the warming and zonal wind reversal affect the entire polar stratosphere.
16.
On the equator, both observational and modeling studies indicate that there is a Bjerknes-type air-sea coupled mode arising from the interaction of the equatorial zonal SST gradient, ITCZ convection, zonal wind, and thermocline depth .
17.
"Dowling An expert in the dynamics of the atmospheres of the giant planets, he determined a relationship between potential vorticity and the zonal wind on Jupiter and developed explicit planetary isentropic-coordinate models for Jupiter, Saturn, Uranus and Neptune.
18.
The zonal wind of this component has the amplitude " u " at the equator relative to the ground, where " u " > 0 indicates superrotation and " u " < 0 indicates retrograde rotation with respect to the solid Earth.
19.
If so, it has moved ~ 2?north in latitude and increased in velocity by ~ 25 m s " 1, just as predicted by the zonal wind profile ( in addition, its east-west diameter has increased from 3200 km to 4500 km ) ."
20.
The weak THC resulted in slightly stronger low-level trade winds, an increase in upper-level zonal winds and vertical wind shear, higher environmental air pressures and less low-level mass wind convergence and rainfall in the Intertropical Convergence Zone, and reduced middle-level moisture.
