[MITgcm-support] Higher order advection scheme for momentum

[Dimitris Menemenlis]

> However, if you are using the vector-invariant form, 
> there is an option to use the 4th order advection scheme
> to advect vorticity (and Dimitri M. seems happy with this
> scheme). You need to add, in the 1rst namelist of parameters
> (file "data"):
> highOrderVorticity=.TRUE.,
> (in addition to vectorInvariantMomentum=.TRUE.,)

"highOrderVorticity=.TRUE." results in slightly more energy
at high wavenumbers, all else being equal.

Dimitris