Evaluation of Temperature-Based Empirical Models and Machine Learning Techniques to Estimate Daily Global Solar Radiation at Biratnagar Airport, Nepal

Table 1

Statistical indicators for temperature-based empirical models.

Models			RMSE
Hargreaves and Samani (HS)	0.5291	0.5291	3.0148
Chen and Li (model 1)	0.5716	0.5697	2.8166
Bristow and Campbell (BC)	0.5764	0.5728	2.7949
Jahani et al.	0.5931	0.5878	2.7455
Chen and Li (model 2)	0.6248	0.6200	2.7336
Fan et al.	0.6435	0.6373	2.5810