Good day, can anyone please share the equations and the methodology which is employed for calculating the empirical coefficients for the Bristow-Campbell model?
I have the following specific questions:
1) Can we take the empirical coefficient C to be 2.4 for any of the geographical locations?
2) Can we determine empirical coefficient A to be the sum of the Angstrom coefficients i.e => A = a + b
3) What exactly do we mean by mean monthly ΔT+ which is required for calculating coefficient B.
B = 0.036 exp (-0.154 ΔT)
ΔT+ = monthly mean ΔT
ΔT = Tmax − Tmin (°C); with Tmin averaged over current and next day
Thank you.
Dear Muhammad Munir;
The answers of your specific questions as:
1. These coefficients are dependent on the site of where they calculated, for example: if you calculate them in Algeria, and apply them in UAE, the models with these coefficients will give you lower performances than in Algeria.
2. Not always, just in very specific cases.
3.This depend on the correlation used, in some cases it is the first, and in others it is the second. Therefore you need to check the equation.
I hope this can help
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