Worldwide Climate Modeling of Diffuse Solar Fraction from One-minute Irradiance
Abstract
This work presents a new one-minute diffuse fraction model based on the BRL-minute model, with a new predictor added to it and the use of a robust nonlinear regression method that can minimize the effects of outliers on the dataset without removing them. The presented model is also regressed using the BSRN data from many stations belonging to the same climate according to the Köppen-Geiger classification and a comparison with the BRL, Engerer, Skartveit and Perez models is made.