How Small/Large region can ROMS compute?

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

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

How Small/Large region can ROMS compute?

#1 Unread post by kameya »

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.

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kate
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Location: CFOS/UAF, USA

#2 Unread post by kate »

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 Unread post by kameya »

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

c.drinkorn
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Location: German Research Centre for Geosciences

Re: How Small/Large region can ROMS compute?

#4 Unread post by c.drinkorn »

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!

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kate
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Re: How Small/Large region can ROMS compute?

#5 Unread post by kate »

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.

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