Research Article

Prediction of Global Solar Radiation in Abu Dhabi

Table 2

Correlation coefficients.

StationModel 𝑎 𝑏 𝑐 𝑑

Abu DhabiLinear0.18330.5301
Quadratic0.18900.8450−0.3900
Cubic0.42010.5292− 0.77710.5211
Exponential0.53990.1630
Logarithmic0.62900.1053
Linear-logarithmic0.7621−0.162680.08576
Power−0.46980.034

Al AinLinear0.18330.6478
Quadratic0.63510.0966−0.0255
Cubic0.44110.8292− 0.97710.4211
Exponential0.64160.099
Logarithmic0.68580.0153
Linear-logarithmic0.7081−0.012680.01276
Power−0.40580.00014