Converting ETOPO1 bedrock file for use in CDO
Added by Francis Rayder about 10 years ago
I am trying to use the ETOPO1 bedrock file in CDO.
http://www.ngdc.noaa.gov/mgg/global/
The file is available in .grd, .hdr and .xyz format. I have not been able to convert any of these formats to .nc for use in CDO, or to import them with any of the CDO commands.
Does anyone know how this could be done?
Replies (2)
RE: Converting ETOPO1 bedrock file for use in CDO - Added by Uwe Schulzweida about 10 years ago
The cell registered gmt4.grd file is netCDF CF conform and can be used in CDO:
http://www.ngdc.noaa.gov/mgg/global/relief/ETOPO1/data/bedrock/cell_registered/netcdf/ETOPO1_Bed_c_gmt4.grd.gz
RE: Converting ETOPO1 bedrock file for use in CDO - Added by Francis Rayder about 10 years ago
Thank you for your answer.
Indeed, CDO can use the ETOPO file, but I can't do anything with it, at least on my machine. CDO gives "cannot allocate memory" errors because the file is, presumably, too big. However, I managed to convert the geotiff file from ETOPO to .nc and then to a smaller resolution with gdal, which can then be used by CDO.