IBZ+ΔRIX correction procedure

[FINN]

I'm asking about the Exercise in WR-9: WAsP in complex terrain exercise,

I couldn`t understand how to calculate  'IBZ+ΔRIX correction procedure'

plz explain.

[Alexandre]

Explaining IBZ + dRIX correction procedure:

From Predicted Climate at Mast position we obtain the following parameters:
U  also called U(IBZ) in the exercise
RIX
dRIX
Using the dRIX we obtain a prediction error, P, from the provided graph (in the exercise).
We apply the dRIX correction with expression: U(RIX) = U(IBZ) / (P+1)

Example: prediction of Mast 10 from Mast 6
U(IBZ) = 4.63
RIX = 13,4
dRIX = -20
P = ~21%
U(RIX) = 5.86

 

Regards

Alexandre