[MITgcm-support] rbcs advice

[Dimitris Menemenlis]

Hi Jody, I think yes.  What grid spacing are you running your regional domain?
And what resolution (space and time) is your open boundary conditions?

Michael Schodlok has a lot of experience going from
CS510 (18 km) to 1 km domains, then adding tides,
and possibly obcs sponge to get rid of some edge artifacts.

But with sufficiently high-resolution (in time) obcs,
I am guessing that you will not need sponging at all.
At least that's the theory.
Chris Hill was experimenting with "replaying" bits
of the 1/48th using obcs.  I don't know how far he got.

Let me know if you want to access the 1/48th output
and we can figure out best way to proceed.

Cheers, Dimitris

On Mar 4, 2014, at 8:50 AM, Jody Klymak <jklymak at uvic.ca> wrote:

> Do you think its true that I could just force w/ obcs and do away w/ the sponge?  I've used sponges for so long I hadn't thought of giving this a try, but maybe it is all I need to do, and I can ditch rbcs.  Certainly my forcing should have all the modes that could conceivably reach the boundaries by the time my integration is done.  
> 
> Second, 1/48th degree global with tides!  That would be very interesting!