the lat and lon variables don't have units You can now use sellonlatbox to cut the wanted region from the interpolated data. To do so change the value of the environment variable REMAP_EXTRAPOLATEĬdo -remapnn,r1440x720 topo_subregion.nc topo_subregion_r1440x720_nn.ncĬdo sinfon topo_subregion_r1440x720_nn.nc If you want to use the remapnn operator you have to disable extrapolation. Lat : -89.875 to 89.875 by 0.25 degrees_northĪnd here is the plot for the interpolated sub-region: Lon : 0 to 359.75 by 0.25 degrees_east circular Now, we interpolate this sub-regional data with r1440x720 to a global grid with remapbil.Ĭdo remapbil,r1440x720 topo_subregion.nc topo_subregion_r1440x720.ncġ : unknown unknown c instant 1 1 1036800 1 F32 : topo 1 : Institut Source T Steptype Levels Num Points Num Dtype : Parameter nameġ : unknown unknown c instant 1 1 221 1 F32 : topo Let me explain you what cdo will do with your sub-region data.Īnd because I do not have your data I'll create an example sub-region file:Ĭdo -f nc -setrtomiss,-20000,0 -sellonlatbox,-90,-21,-40,15 -topo,r90x45 topo_subregion.nc
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