cdo info says miss=0 but there are 224 missing values
Added by Michelle Irizarry over 3 years ago
Hi there!
I am using cdo info on the attached file and it is saying that there are 0 missing values on each timeslice, whereas opening the file in R shows 224 missing values on each timeslice.
cdo info prec.rcp45.EC-EARTH.HIRHAM5.day.NAM-44i.mbcn-Daymet.nc.nc4
I am using CDO version 1.9.9rc1 in Ubuntu
I need cdo to correctly identify missing values so that I can fill them with setmisstonn or setmisstodis.
Thanks for any help.
--Michelle
Replies (2)
RE: cdo info says miss=0 but there are 224 missing values - Added by Ralf Mueller over 3 years ago
hi Michelle!
your input uses CF-conform attributes to declare the missing value:
float prec(time, lat, lon) ;
prec:_FillValue = 1.e+20f ;
prec:missing_value = 1.e+20f ;Unfortunately the data does NOT use this value, but 'NaN'. Hence CDO does not recognize the NaNs as missing value. When you tell CDO that the missing value is nan, it can correctly interpret the data field
cdo -infov -setmissval,nan prec.rcp45.EC-EARTH.RCA4.day.NAM-44i.mbcn-Daymet.nc.nc4
cdo(1) setmissval: Process started
Warning (cdfScanVarAttr): NetCDF: Variable not found - time_bnds
Warning (cdfInqContents): Coordinates variable time can't be assigned!
Warning (cdfInqHistoryString): History attribute with type NC_STRING unsupported!
-1 : Date Time Level Gridsize Miss : Minimum Mean Maximum : Parameter name
1 : 2006-01-01 12:00:00 0 345 224 : 0.0000 20.081 35.970 : prec
2 : 2006-01-02 12:00:00 0 345 224 : 0.0000 3.7081 34.592 : prec
3 : 2006-01-03 12:00:00 0 345 224 : 0.0000 0.27496 5.1793 : prec
4 : 2006-01-04 12:00:00 0 345 224 : 0.0000 0.24814 12.570 : prec
5 : 2006-01-05 12:00:00 0 345 224 : 0.0000 0.32385 4.5415 : prec
6 : 2006-01-06 12:00:00 0 345 224 : 0.0000 0.014308 0.62445 : prec
7 : 2006-01-07 12:00:00 0 345 224 : 0.0000 6.5022 32.465 : prec
8 : 2006-01-08 12:00:00 0 345 224 : 0.0000 0.40284 6.2324 : prec
9 : 2006-01-09 12:00:00 0 345 224 : 0.0000 0.056713 1.8952 : prec
10 : 2006-01-10 12:00:00 0 345 224 : 0.0000 0.12273 2.8154 : prec
....RE: cdo info says miss=0 but there are 224 missing values - Added by Michelle Irizarry over 3 years ago
Oh! This really helps! Thanks so much! I was wondering why it was not working properly!