How Small/Large region can ROMS compute?

Discussion of how to use ROMS on different regional and basin scale applications.

Moderators: arango, robertson

Post Reply
Message
Author
kameya
Posts: 4
Joined: Wed Apr 11, 2007 6:04 pm
Location: Denryoku Computing Center Ltd.

How Small/Large region can ROMS compute?

#1 Post by kameya » Fri Jun 08, 2007 4:09 am

Hello. I am a beginner of ROMS. I have a question.

How Small/Large region can ROMS compute?
Can ROMS do a Grobal scale computation at once?

If Anybody knows the Minimum/Maximum size on map that ROMS can treat
at once, please teach me.

Thank you.

User avatar
kate
Posts: 3718
Joined: Wed Jul 02, 2003 5:29 pm
Location: IMS/UAF, USA

#2 Post by kate » Fri Jun 08, 2007 6:39 pm

Paul Budgell is doing a global ROMS. On the small end, I think it has been run to simulate a laboratory rotating tank to the same scale. Four meters across? Something like that.

kameya
Posts: 4
Joined: Wed Apr 11, 2007 6:04 pm
Location: Denryoku Computing Center Ltd.

#3 Post by kameya » Sun Jun 10, 2007 11:45 pm

Your answer helps me very much. Thank you ! (^ ^)

c.drinkorn
Posts: 82
Joined: Thu Mar 08, 2018 2:47 am
Location: German Research Centre for Geosciences

Re: How Small/Large region can ROMS compute?

#4 Post by c.drinkorn » Tue May 29, 2018 12:35 pm

kate wrote:Paul Budgell is doing a global ROMS. On the small end, I think it has been run to simulate a laboratory rotating tank to the same scale. Four meters across? Something like that.
I know, this is old but is the global set up still available somewhere (GitHub etc.)? Thanks!

User avatar
kate
Posts: 3718
Joined: Wed Jul 02, 2003 5:29 pm
Location: IMS/UAF, USA

Re: How Small/Large region can ROMS compute?

#5 Post by kate » Tue May 29, 2018 4:19 pm

I once had a global setup with a tripole grid on some long-abandoned branch. Numerically, it was terrible, losing deep water properties in far too short a time. Then a colleague was talking to climate modelers and was told you don't want to run globally at 25 km anyway: it's too fine for non-eddy-resolving, too coarse for eddy-resolving. Paul has since switched to other models with better deep water conservation - best to ask him directly for his setup.

Post Reply