Table 6 Comparison of calibrated coefficients of the A–P model in the present study with the results of other researchers.

From: Calibration and validation of the Angstrom–Prescott model in solar radiation estimation using optimization algorithms

Station

 

Bandar Abbas

Esfahan

Shiraz

Kerman

Mashhad

Yazd

a

b

a

b

a

b

a

b

a

b

a

b

Khalili and Rezaei Sadr50

  

0.30

0.42

0.29

0.42

0.28

0.45

0.30

0.37

0.21

0.64

Sabziparvar et al.49

  

0.271

0.48

0.247

0.512

0.267

0.518

0.274

0.418

0.304

0.492

Didari and Ahmadi51

    

0.31

0.48

      

Present study

SCE

0.38

0.35

0.15

0.58

0.25

0.53

0.27

0.51

0.22

0.62

0.18

0.53

HS

0.38

0.36

0.13

0.60

0.26

0.50

0.28

0.47

0.24

0.59

0.20

0.64

IHS

0.39

0.33

0.16

0.56

0.27

0.51

0.24

0.54

0.23

0.61

0.19

0.66

GHS

0.36

0.37

0.15

0.57

0.20

0.58

0.26

0.50

0.21

0.63

0.18

0.67