Correct Lonlat Grid When Convertng from NetCDF to GRIB
Added by Aaron Perry over 7 years ago
I am trying to convert a lonlat file from NetCDF to GRIB using the following code:
cdo -f grb -setparam,0.0 -setlevel,2 -setltype,103 -setmissval,-999.99 in.nc out.grib
When I convert to GRIB and display the file, the grid is skewed from the input NetCDF grid. Below is the grid info from the NetCDF and output GRIB files, including the matching images:
NetCDF: #- gridID 1
#
gridtype = lonlat
gridsize = 1841644
xname = lon
xlongname = Longitude
xunits = degrees_east
yname = lat
ylongname = Latitude
yunits = degrees_north
xsize = 1802
ysize = 1022
xfirst = -80.0001
xinc = 0.00833333
yfirst = 39.9919
yinc = 0.00833333
- gridID 1
#
gridtype = lonlat
gridsize = 21922684
xname = lon
xlongname = longitude
xunits = degrees_east
yname = lat
ylongname = latitude
yunits = degrees_north
xsize = 7022
ysize = 3122
xfirst = 235
xinc = 0.008
yfirst = 23.992
yinc = 0.007999
grads_file (194 KB) grads_file | This is how the file should look (from the input NetCDF file), as displayed in GrADS | ||
cdo_file (110 KB) cdo_file | This is the output file after converting from NetCDF to GRIB |
Replies (1)
RE: Correct Lonlat Grid When Convertng from NetCDF to GRIB - Added by Aaron Perry over 7 years ago
Correction to the NetCDF grid size:
#
- gridID 1
#
gridtype = lonlat
gridsize = 21922684
xname = lon
xlongname = Longitude
xunits = degrees_east
yname = lat
ylongname = Latitude
yunits = degrees_north
xsize = 7022
ysize = 3122
xfirst = -125
xinc = 0.00833333
yfirst = 23.9919
yinc = 0.00833333