[MITgcm-support] Obcs problems

[Martin Losch]

On 1 Jul 2008, at 18:18, Nicolas Grisouard wrote:

> useOBCS = .TRUE. in /data.pkg/  needs =>  #define ALLOW_OBCS in / 
> CPP_OPTIONS.h/  needs  =>   -DALLOW_OBCS in the Makefile.
which is done automatically by inserting the a line with "obcs" into  
packages.conf, which is exactly, Maria's (correct) way of doing it.

Maria, your initial question:
OB_Jnorth=30*-1., is correct, but I assumes that the entire water  
column belongs to the open boundary (and appropriate conditions are  
provided). There is no capability in the code to restrict this to  
the, say, 3 surface layers.

What do you want the model to do below the 3 surface layers along the  
open boundary? You cannot just let it hang on ... You could insert  
topograph (a wall), to close the domain below k=3.

Martin