Plotting eta data

Hi

I had the following code segment to read the geopotential data from an
ETA model grib file.
 GHGT_eta=eta->HGT_212_ISBL(it_eta,:,:,:)
   GHGT_eta = GHGT_eta(::-1,:, :)
   GHGT_eta_at_lat2d_eta=eta->gridlat_212
   GHGT_eta_at_lon2d_eta=eta->gridlon_212
When I tried plotting the data, I get the following complaints
 (0) check_for_y_lat_coord: Warning: Data either does not contain a
valid latitude coordinate array or doesn't contain one at all.
(0) A valid latitude coordinate array should have a 'units'
attribute equal to one of the following values:
(0) 'degrees_north' 'degrees-north' 'degree_north' 'degrees north'
'degrees_N' 'Degrees_north' 'degree_N' 'degreeN' 'degreesN'

(0) check_for_lon_coord: Warning: Data either does not contain a
valid longitude coordinate array or doesn't contain one at all.
(0) A valid longitude coordinate array should have a 'units'
attribute equal to one of the following values:
(0) 'degrees_east' 'degrees-east' 'degree_east' 'degrees east'
'degrees_E' 'Degrees_east' 'degree_E' 'degreeE' 'degreesE' 'deg ea

Wonder why is that so? I encoutered that for wrf data after some
processing but doing what i did above remove that problem.

Agnes
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Received on Wed Nov 12 2008 - 10:34:24 MST