[MITgcm-support] XU, YU and XV, YV coordinates in the curvilinear grid...

[Simone Sammartino]

Hi 
I’m working on outputs on a curvilinear grid...
I saw that the X-YU and X-YV grid are written in the NETCDF case (http://mitgcm.org/viewvc/MITgcm/MITgcm/model/src/write_grid.F?view=markup), but it seems they are not in the binary output format case.
The U coordinates are defined as XU=XG and YU=YC and the V coordinates as XV=XC and YV=YG, but it is correct only in the case of a cartesian grid.
It does not correspond to the real U and V coordinates on a curvilinear grid, which instead depends on the angle in X-YC.
So, two questions:
- Where are located the U and V vectors in the curvilinear grid?
- Why the X-YU and X-YV grid are not written in the binary output format?

Thank you in advance

Simone

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Simone Sammartino
Physical Oceanography Research Group
University of Málaga
GOFIMA
Campus Teatinos s/n
ETSI Telecomunicación
29071 Málaga (Spain)

Tel: +34 952 13 28 49
http://oceano.uma.es
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