[gradsusr] Conditional summing (sum if) in grads

[Davide Sacchetti]

you could use maskout() function
or if() in more recent grads releases
something like:
display sum(if(t,<,0,precipitation,0),t=1,t= ...)


bye bye
Davide



 From:   Gevorgyan Artur <agm86 at yandex.ru> 
 To:   GrADS Users Forum <gradsusr at gradsusr.org> 
 Sent:   6/20/2020 12:34 PM 
 Subject:   [gradsusr] Conditional summing (sum if) in grads 


Dear Colleges,
 
I have high-frequency (1-min) model output on 1x1 km resolution grid for forecasted 2 meter temperature and precipitation amount over 24 h simulation period. I want to calculate total frozen precipitation as a sum of forecasted precipitation when  2 meter temperature was below 0 degree Celsius. Can I use s conditional summing (sum if) and sum my precipitation variable by time if my temperature variable was below 0?
 
Kind regards,
Artur
  

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