[gradsusr] Problem obtaining daily climatology

[krishnamohan]

Hai,

I was calculating daily climatology for 30 year ncep wind from 1979 to 2008
and i encountered a problem. As per grads tutorial i have given the
following commands

'reinit'
'sdfopen /media/MEGA2/wind/ncep/uwind/level/u200/u200-1979-2009.nc'
'set grads off'
'set lat -20 40'
'set lon 30 180'
'set map 1 1 8'

'set t 1 365'
'define uclim = ave(uwnd, t+0,t+10958,365)'

and i am getting uclim properly

but inorder to make it a climatological variable i used 'modify' function

'modify uclim seasonal'

then i got error

MODIFY Error:  Invalid time scaling in defined variable, then i used

'modify uclim diurnal'

will say 'Defined variable is now climatological' but is showing same
pattern for all the days

As grads tutorial says

seasonal   - For creating monthly or multi-monthly climatologies
diurnal    - For creating climatologies over a time period less than a day

ie there are only options for monthly or less than a day calculation. what
is the option for finding daily climatology using this method


-- 
Krishnamohan.K.S
Junior Research Fellow
Department Of Atmospheric Sciences
Cochin University of Science and Technology
Cochin,India
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