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4 votes
Accepted

Why are there different Notations of Vorticity Equation?

The first equation is presented when the vector identities are not used. That is when students may not have knowledge of advanced vector algebra, for example, curls, dot and cross products, ...
Gemechu Fanta Garuma's user avatar
2 votes
Accepted

Why does relative vorticity in spherical coordinates have an extra term as compared to the usual cartesian derivation?

The best way to see this extra term is to consider a bug moving along a latitude circle at constant speed $|u|$ in a constant direction arounf the poles. If the bug is moving along a geodesic then ...
Oscar Lanzi's user avatar
  • 3,926
2 votes
Accepted

Why is the zonal component of flow in the ocean much larger than the meridional component

It is more of a consistency argument: if a constant-depth ocean with much less relative vorticity than planetary vorticity is to stay that way, the flow must be zonal. If there were significant ...
Ben51's user avatar
  • 230

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