[MITgcm-support] nudging techniques, OBCS and freezing

[prosperi at wicc.weizmann.ac.il]

Hi guys,

I have some silly questions:

where can I find some documentations to use OBCS.
In the plume on the slope example it is said to define by
 

#define ALLOW_OBCS
in CPP_OPTIONS.h  and activate it with use_OBCS=.TRUE, in namelist 
PACKAGES of input/data.pkg.
If I do it I get from the genmake that this definiton is not anymore 
allowed.
If I want to put OBCs at a southern part of my domain, how can I do it? 

2) I am confused about something very basic:
   in a finite volume integration scheme u have the advantage that 
increaing the horizontal resolution, u automatuically resolve better even 
the topography since u are working with volume units. When I set the size 
of the grid and the domain decomposition, I have, basically (...very 
basically), two files to change:

SIZE.h (nSx, nSy, nr) and in data delX = nSx*size of the grid.
hFacMin gives me  the actual thickness of the cell.
The question is:
is it eventually by hFacMin that I can increase the spatial resolution of 
my domain?
 
thank u very much in advance, as usual.

Davide