After timpctl: SDF file has no discernable time coordinate -- using default values. gadsdf: SDF file does not have any non-coordinate variables.
Added by Marcelino II Villafuerte over 13 years ago
Dear CDO users,
I'm trying to obtain the 99th percentile of my 30-yr daily rainfall record to know the extreme values of rainfall spatially. So, I used the following commands:
cdo timpctl,99 APHRO_MA_025deg_V1003R1.1971to00.nc -timmin APHRO_MA_025deg_V1003R1.1971to00.nc -timmax APHRO_MA_025deg_V1003R1.1971to00.nc aphrop99.nc
where: APHRO_MA_025deg_V1003R1.1971to00.nc << the 30yr daily rainfall input file
aphrop99.nc << as the 99th Percentile of the 30yr period rainfall
The process seems fine since my output netcdf file was created. Unfortunately when I'm trying to open the output file using grads Version 2.0.a9.oga.1 the following error was received:
SDF file has no discernable time coordinate -- using default values. gadsdf: SDF file does not have any non-coordinate variables.
Is there something wrong with what i've done? I've attached the output file for your reference.
Thanks in advance,Mar
| aphrop99.nc (795 KB) aphrop99.nc |
Replies (1)
RE: After timpctl: SDF file has no discernable time coordinate -- using default values. gadsdf: SDF file does not have any non-coordinate variables. - Added by Uwe Schulzweida over 13 years ago
Dear Mar,
GrADS can only work on netCDF datasets with a relative time axis. Some CDO time range statistic operators create an absolute time axis. Use the CDO option -r to force a relative time axis:
cdo -r timpctl,99 APHRO.nc -timmin APHRO.nc -timmax APHRO.nc aphrop99.ncBest regards,
Uwe