Table 6.

Results from the validation days at POA and PAL.

Station Model Validation days Average correlation coefficient, R Average RMSE (mm) Number of validation days
POA Equation (5) Scintillation 0.63 0.0562 12
POA Equation (5) Non-scintillation 0.57 0.0382 12
POA Equation (6) Scintillation 0.55 0.0923 12
POA Equation (6) Non-scintillation 0.51 0.0858 12
PAL Equation (5) Scintillation 0.71 0.0661 12
PAL Equation (5) Non-scintillation 0.64 0.0375 12
PAL Equation (6) Scintillation 0.59 0.1057 12
PAL Equation (6) Non-scintillation 0.55 0.0923 12

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