[MITgcm-support] 回复： solid boundary with sponge layer

[钱钰坤]

Hi Jody,


Thanks for your explanation.  It looks like the sponge layer will
sponge all variables inside the layer.  I will give a try in this way.


------------------
 Best regards 
 
Yu-Kun Qian (钱钰坤) 
Center for Monsoon and Environment Research 
 Department of Atmospheric Sciences
School of Environmental Science and Engineering 
 Sun Yat-sen University 
No. 135 Xingang West Road, Haizhu District 
Guangzhou, 510275, P.R. China 
Tel; 020-84115227 
Email: qianyk at mail3.sysu.edu.cn      


 
 
 
------------------ 原始邮件 ------------------
发件人: "Jody Klymak"<jklymak at uvic.ca>;
发送时间: 2019年7月7日(星期天) 凌晨1:58
收件人: "mitgcm-support"<mitgcm-support at mitgcm.org>; 

主题: Re: [MITgcm-support] solid boundary with sponge layer

 

I think you could do either, though I think rbcs might be the most straight forward.  But if you want to use obcs, I think you can just set V=0 at your northern boundary and that will be close to the same thing as a wall.  Note however, that if you have a sponge for temperature I *think* you will get the same one for V.   

Cheers,   Jody



On Jul 6, 2019, at  6:46 AM, 钱钰坤 <qianyk at mail3.sysu.edu.cn> wrote:

Hi all,


I am using a model setup with a solid north boundary so that no mass exchange
occurs at the north.  This is done using a bathymetry file whose northernmost
grid points are set to zero (e.g., land points).


However, I also need a sponge layer so that the temperature could be restored to
some given profile.  According to the manual, my sponge layer will restore temperature
to the north boundary condition.


Now I'm a little confused.  Since my north boundary is masked by the bathy file, does a
temperature boundary file take some restoring effects in this case?  Or maybe I should
use the rbcs package?




------------------
 Best regards 
 
Yu-Kun Qian (钱钰坤) 
Center for Monsoon and Environment Research 
 Department of Atmospheric Sciences
School of Environmental Science and Engineering 
 Sun Yat-sen University 
No. 135 Xingang West Road, Haizhu District 
Guangzhou, 510275, P.R. China 
Tel; 020-84115227 
Email: qianyk at mail3.sysu.edu.cn      


 

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