[MITgcm-support] Open boundary conditions!

[Ertyy]

Hi Nicolas:
    Thank you for your reply! I think it is not the same situation for the sea ice module,so how can I configure an ice-ocean model with period boundary conditon for sea ice? It is my mistake for the freezing tempareture, some grids with strong horizontal temp gradient were generated when preparing the initial conditions from SODA data, which induced the instability, but with no problem when using the ECCO reanalysis. So I think it is a interpolation problem. 
Best wishes,


--- 10年6月3日，周四, Nicolas Grisouard <nicolas.grisouard at legi.grenoble-inp.fr> 写道：


发件人: Nicolas Grisouard <nicolas.grisouard at legi.grenoble-inp.fr>
主题: Re: [MITgcm-support] Open boundary conditions!
收件人: mitgcm-support at mitgcm.org
日期: 2010年6月3日,周四,下午8:07


Hi,


The default setting for the boundaries is periodic. So if you turn OBCs off, you will get at one boundary the same value as at the opposite boundary, not zero.


I don't know about the freezing temperatures, sorry.


Cheers,
Nicolas



Le 1 juin 10 à 03:50, Ertyy a écrit :






Dear ALL:
      when configured a regional application, how does the open boundary value be determined? I have turned off the useOBCs, however, the outmost grid still have values. Another problem is that, grids with temperature under freezing (about -3 degree) were generated, I have no idea since the sea ice module has been turned on, and constant freezing point is used. 

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-- 
Nicolas Grisouard
PhD Student - ERES research group
Laboratoire des Ecoulements Geophysiques et Industriels
BP53
GRENOBLE CEDEX 9 FRANCE
tel : +33 (0) 476 825 037 - fax : +33 (0) 476 827 022
http://nicolas.grisouard.free.fr

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