Insert dummy variables into grib2
Added by Jannek Squar over 7 years ago
Hey,
I have two timesteps of a GFS forecast. The first timestep does miss some variables, because they are accumulated/avaraged over time and have their first appearance in the second timestep. Therefore the first timestep has 322 and every other timestep has 366 entries. If I now want to select a variable from both files cdo aborts:
cdo select,name=2t step0 step1 outputcdo select (Abort): Input streams have different number of variables per timestep!
Is there a way to fill the first timestep with senseless variables so that both timesteps have the same amount of variables?
Greetings
Replies (2)
RE: Insert dummy variables into grib2 - Added by Karin Meier-Fleischer over 7 years ago
Hi Jannek,
I suggest that you should use
cdo select,name=t2,startdate=date step0 step1 output
where date is of format YYYY-MM-DDThh:mm:ss.
Bye,
Karin
RE: Insert dummy variables into grib2 - Added by Jannek Squar over 7 years ago
Hey Karin, thanks for the reply.
the problem still persists. I added two example files to demonstrate the problem.
Information about the first file:$ cdo showtime step000.grib2 00:00:00$ cdo showname step000.grib2 2t
Information about the second file:
$ cdo showtime step003.grib2 03:00:00$ cdo showname step003.grib2 2t 2r
Executing cdo select,name=2t,startdate=2016-01-01T00:00:00 step000.grib2 step003.grib2 step_2t.grib2 results in:cdo select (Abort): Input streams have different number of variables per timestep!
Greetings
Jannek
| step003.grib2 (463 KB) step003.grib2 | timestep 2 | ||
| step000.grib2 (244 KB) step000.grib2 | timestep 1 |