Dear
all
This is Suman Maity from IIT KHARAGPUR, INDIA.I want to know the how to calculate the total precipitation from RegCM4.1 output.From the surface model output, there is a variable "tpr" whose unit is kg/m2/day.My surface model output frequency is 3 hourly. I have applied the formula to plot in grads say for the month june:
ga> d sum(tpr,t=1,t=120)/8
Is it ok? If not then how to do it?
Thanks in advance,

'S Maity'

*******************************************************
Suman Maity
Research Scholar
Center for Ocean, Rivers, Atmosphere and Land Sciences(CORAL)
Indian Institute Of Technology Kharagpur.
Assistant Professor 
Department of Mathematics
Bankura Unnayani Institute Of Engineering.
*******************************************************