[MITgcm-support] state vector of MIT model

[samar khatiwala]

Alistair, thanks.

Is eta necessary if I don't use nonlinear free surface or exact
conservation.

I guess my question really is: which variables can I independently
perturb in a consistent way (i.e., while satisfying the governing
equations).

Samar

On Fri, 14 Jan 2005, Alistair Adcroft wrote:

> I think it is   U,V,T,S,eta
>
> W can be found from W
> rho from S,T
> P can be found from eta,rho
>
> A.
>
> samar khatiwala wrote:
> > Hello
> >
> > I am trying to make a list of the variables that define the state space
> > of the MIT model. That is, I want to (notionally) write the model as:
> >
> > dx/dt = F(x) + external forcing
> >
> > where x(t) is the state vector.
> >
> > Assuming the model is hydrostatic, so far I have the following in x:
> >
> >    uVel,vVel,wVel,theta,salt,pressure
> >
> > Do I also need eta, or is that only if I have a nonlinear free surface?
> > What about pressure? Is is strictly necessary, or can it be determined
> > (in principle) from the other variables?
> > Can someone please tell me if I am missing anything?
> >
> > Thanks, Samar
> > _______________________________________________
> > MITgcm-support mailing list
> > MITgcm-support at mitgcm.org
> > http://dev.mitgcm.org/mailman/listinfo/mitgcm-support
>
>
> --
> Dr Alistair Adcroft            http://www.mit.edu/~adcroft
> MIT Climate Modeling Initiative        tel: (617) 253-5938
> EAPS 54-1624,  77 Massachusetts Ave,  Cambridge,  MA,  USA
> _______________________________________________
> MITgcm-support mailing list
> MITgcm-support at mitgcm.org
> http://dev.mitgcm.org/mailman/listinfo/mitgcm-support
>