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Formula 26 in Draft PVSAM

sunup
Topic Author

07 Oct 2014 11:10 #2599 by sunup

Formula 26 in Draft PVSAM was created by sunup

I believe there is a mistake

Let a = minutes to sunrise = T-hr
Let b = minutes of sunup = 1 - a

So the midpoint in my opinion would be

midpoint = 60(a + b/)2

But your definition is

midpoint = 60(b + a/2)

Assuming a 60 minute time step and that that the sunup time is in decimal minutes:

should be

Assuming a 60 minute time step and that that the sunup time is in hours:

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