split dates of grib

[Stergios Misios]

hi,
the cdo works perfectly with every time step.
lets assume you have 1 moth surface presure, with 30 days for the sake
of simplicity with 4 time step each. In total 30*4=120 steps
Then with,
cdo splitsel,1 <pressure_file>  <base_file>
the output you get is 120 files with names
base_file000
base_file001
....
base_file120.
The you can use grads for each file individually...
Why you don;t use the time inside the grads script using something like,
set t 1
set t 2
....
set t 120
I think is simpler.

Stergios