Changing 1 variable in nc file
Added by Wim Thiery over 12 years ago
Hello,
I would like to change 1 variable in a nc file, e.g. set the surface height to 0 without touching the other variables.
In order to do so, I am using the following three commands:
cdo mulc,0 -selname,HSURF laf2007051700.nc HSURF_zero.nc
cdo delname,HSURF laf2007051700.nc laf2007051700_noHSURF.nc
cdo merge laf2007051700_noHSURF.nc HSURF_zero.nc laf2007051700_final.nc
However, when I apply these commands other variables (lat, lon) are duplicated and renamed, and others are removed (vcoord, tbounds). Is there a way of avoiding this problem?
Many thanks in advance for your help!
Kind regards,
Wim
Replies (2)
RE: Changing 1 variable in nc file - Added by Uwe Schulzweida over 12 years ago
There is no way to avaid this problem, sorry.
Variables could be lost if the structure is unsupported or if it is a coordinate variable and not used by a data variable (see: Lost-netCDF-variables).
Variables are never renamed. CDO changes "only" some names of netCDF dimensions.
Best regards,
Uwe
RE: Changing 1 variable in nc file - Added by Wim Thiery over 12 years ago
Dear Uwe,
Thank you very much for your answer. We finally figured out a way to circumvent this problem by importing the files in R.
Kind regards,
Wim