[MITgcm-support] How to keep Prandtl number as one when 3D vertical eddy diffusivity is empolyed?

[Martin Losch]

Hi Jerry, 

according to what I found in the code, you can specify horizontal viscosity fields, but not for the vertical viscosity. There’s only a variable for one profile (viscArNr) for the entire domain.

Martin

> On 2. Aug 2019, at 18:21, Ye Ruijie <jerry6816 at gmail.com> wrote:
> 
> Dear all,
> I am trying to simulate diffusion-driven flow on sloping topography and set a 3D vertical eddy diffusivity field as the background field. But refer to the condtion that the Prandtl number is equal to one, I have no idea how to set the 3D vertical eddy viscosity (viscAr). Could I input a 'viscArFile=viscAr.bin' just like 'diffKrFile=diffKr.bin'? 
> Please give me some suggestions.
> 
> Sincerely,
> Jerry Ye
>  
> 
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