What's the best ratio?

Discuss the nesting capability within the model itself and any problems you might have run into.

What's the best ratio?

Postby ozrr » Tue Sep 15, 2015 2:22 am


I want to downscale global data which is 20km grid using WRF.

What's the best grid ratio?

I heard that 3 is the best, but how about 20km-5km-1km?

The topic is typhoon.

If anybody has a experience downscaling with another grid ratio, how was it?
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Re: What's the best ratio?

Postby mpalmer » Tue Sep 15, 2015 9:38 am

I only use 1:3 and as best as I can tell your 1:4 first step would be highly NOT recommended. I think 1:3 is best and sometimes you can get away with 1:5
Michael Palmer, M.Sc.
Predictive Analytics Researcher | Green Power Labs
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Joined: Fri Aug 30, 2013 12:08 pm

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