curvilinear to rectilinear

Hello,

I am looking for a way to interpolate modeling data from curvilinear
rotated grid coordinates from a regional model into normal rectilinear
lat-lon coordinates.

The model output files contains:
dimensions:
lon = 110 ;
lat = 100 ;
record = UNLIMITED ; // (31 currently)
variables:
float mslp(record, lat, lon) ;
mslp:WMO = 1 ;
mslp:LTYP = 103 ;
mslp:ALEV = 0.f ;
float u10(record, lat, lon) ;
u10:WMO = 33 ;
u10:LTYP = 105 ;
u10:ALEV = 10.f ;
float v10(record, lat, lon) ;
v10:WMO = 34 ;
v10:LTYP = 105 ;
v10:ALEV = 10.f ;

I also have a text file that links rotated model coordinates (lats and
lons) and their equivalents on a normal latitude and longitude grid.
The text file looks like this, where the first column is a rotated
lat, column - a rotated longitude, third and the 4th are equivalent
lats and lons on a normal grid respectively.
    -25.00 -27.50 53.50 -44.72
    -25.00 -27.00 53.85 -44.23
    -25.00 -26.50 54.20 -43.74
    -25.00 -26.00 54.55 -43.23
    -25.00 -25.50 54.89 -42.71
    -25.00 -25.01 55.22 -42.19

Thanks,
Alex
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Received on Fri Apr 12 14:59:25 2013