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Regrid and interpolate NetCDF file without a geographic coordinate system

Added by Nathanael Harwood over 7 years ago

Hi all -

I'd appreciate any help with this - I'm trying to regrid a NetCDF file without a geographic coordinate system that just uses gridbox coordinates (no lat/long), to the same grid as another file.

The grid of the file to be changed is an 88x88 National Met Centre Limited-Area half mesh grid, which is apparently 'a Cartesian grid with spat resolution 190.5km at a standard parallel of 60 degrees, draped over a polar stereographic projection'. Grid cell size increases towards the pole.

I can't figure out which operator I should use to regrid the file and interpolate the values to the new grid. New grid used should be the ECMWF format which has worked well in my code - I'll upload both files.

Many thanks,
Nathanael

Download all files
NOAA_Snow_JanJune2016.nc (5.5 MB) NOAA_Snow_JanJune2016.nc NMC limited area half mesh grid to be regridded
SeaIce_Jan-June2016.nc (13 MB) SeaIce_Jan-June2016.nc ECMWF sea ice file- format to be adopted

Replies (3)

RE: Regrid and interpolate NetCDF file without a geographic coordinate system - Added by Karin Meier-Fleischer over 7 years ago

Hi Nathanael,

cdo -r -remapbil,SeaIce_Jan-June2016.nc NOAA_Snow_JanJune2016.nc NOAA_Snow_JanJune2016_regridded.nc

should do what you want.

-Karin

RE: Regrid and interpolate NetCDF file without a geographic coordinate system - Added by Nathanael Harwood over 7 years ago

Thank you both. This forum literally shaves hours, days off the time it takes me.

The file now functions perfectly in my R code (written using ECMWF files), so it's much appreciated!

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