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Warning (cdfScanVarAttributes) : NetCDF: Variable not found - areacello

Added by Dachao Jin over 9 years ago

Dear CDO-users,

I have two systems, one is OSX 10.8 (cdo version is 1.6.9), one is OSX 10.9 (cdo version is 1.6.3).

I can process the data of CMIP5 with no problem in OSX 10.9. But in the OSX 10.8, execute some simple commands such as: cdo genbil,r144x73 tos_Omon_MPI-ESM-LR_historical_r1i1p1_185001-200512.nc test.nc

I can get the warning information:
Warning (cdfScanVarAttributes) : NetCDF: Variable not found - areacello
cdo genbil: SCRIP bilinear remapping from curvilinear (256x220) to lonlat (144x73) grid, with source mask (36791)
cdo genbil: Processed 56320 values from 1 variable over 1 timestep ( 0.36s )

I don't know whether I should take care of this warning, any suggestions is appreciated.

Thank you!

Dachao Jin


Replies (3)

RE: Warning (cdfScanVarAttributes) : NetCDF: Variable not found - areacello - Added by Uwe Schulzweida over 9 years ago

Dear Dachao Jin,

You can ignore this warning message!
It means that there is a reference to the grid cell area variable areacello in your netCDF file but the variable areacello couldn't be found. This grid cell area is only needed to calculate a weighted field mean (with fldmean). In most cases this grid cell area can be recomputed in CDO if it is necessary.

Cheers,
Uwe

RE: Warning (cdfScanVarAttributes) : NetCDF: Variable not found - areacello - Added by Dachao Jin over 9 years ago

Dear Uwe,

Thank you very much for your explanation.

cheers,
Dachao

RE: Warning (cdfScanVarAttributes) : NetCDF: Variable not found - areacello - Added by Rattana Chhin almost 8 years ago

Dear Uwe,

I have two problems to confirm with you.

1. I also got the same warning when I try to use operator 'mergetime' on CMIP5 data. However, there is no result at all from this operator.
please check the warning message I attached.

2. I want to do month sum of data from daily data. However, in GCMs product different calendar were used.
I just want to confirm if operator 'monsum', already consider this different kind of calendars in it routine or not ?

Thank you,

cdo.PNG (12.3 KB) cdo.PNG
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