I have daily rainfall data for the year 2016 but i want to compute rainfall intensity mm/day , how is possible ??? Thanks in advance
Though, in primary observation to your question, it seems that answer is easy, but you may asked for other information. However, my guess, the answer is:
Consider that you have the data oof rainfall(dRF) in mm. These data are stored in a variable dRF(1:366), where dRF is an array type data. Compute the total rainfalls(tRF) in the year of 2016 by summing the values in dRF, i.e., tRF=dRF(1)+dRF(2)+...+dRF(366). Now find the intensity of rainfall(iRF) by dividing tRF by 366, that is iRF=tRF/366.
If you have the data for n days, add all of the daily rainfall entries from your data set and divide by n. Sigmadrf(n=1 .....n)/ n will give you the intensity mm/n
This assumes that daily rainfall data is in mm units.
Maybe you want rainfall intensity for only rainy days. There's a different calculation for that. Count the number of zeros in your dataset drf(n=1 ....n). Say it's m. Now you divide the sigmadrf by f where f=n-m.
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