El-Kharga

Hurghada

No. of model

G_d,m

G_d,c

MBE

RMSE

MPE%

t-Test

No. of model

G_d,m

G_d,c

MBE

RMSE

MPE%

t-Test

Equation (16)

28.29

28.75

−2.15

2.89

−1.25

2.24

Equation (16)

27.68

27.84

2.78

2.12

−2.78

3.12

Equation (17)

29.42

29.12

3.47

1.54

1.15

1.27

Equation (17)

28.45

28.77

−3.27

1.86

1.68

1.63

Equation (18)

28.71

29.55

3.12

3.24

1.38

1.84

Equation (18)

28.12

28.63

4.35

2.67

3.45

2.56

Equation (19)

28.62

28.86

2.63

2.78

1.89

2.31

Equation (19)

27.34

27.14

2.89

3.14

−2.78

1.78

Equation (20)

29.15

29.74

−2.24

1.85

2.35

1.62

Equation (20)

28.65

28.24

−2.78

2.68

2.78

1.92

Equation (21)

29.54

30.21

−1.89

2.28

−2.15

1.69

Equation (21)

28.17

27.97

−1.23

1.47

1.83

2.52

Dammam

Hail

No. of model

G_d,m

G_d,c

MBE

RMSE

MPE%

t−Test

No. of model

G_d,m

G_d,c

MBE

RMSE

MPE%

t−Test

Equation (16)

29.65

29.15

−2.86

2.34

−1.67

2.78

Equation (16)

28.75

29.11

−2.25

2.87

−1.97

2.35

Equation (17)

29.89

29.32

3.11

1.89

2.85

2.21

Equation (17)

29.14

29.65

3.67

2.31

2.25

2.81

Equation (18)

30.21

29.74

3.68

3.56

1.91

1.65

Equation (18)

29.85

29.33

3.14

3.85

1.63

1.92

Equation (19)

29.14

28.98

2.14

2.16

1.42

2.78

Equation (19)

29.54

28.18

2.78

2.39

1.87

2.25

Equation (20)

29.68

29.16

−2.87

1.38

1.34

1.38

Equation (20)

29.15

29.58

−2.23

1.82

1.49

1.74

Equation (21)

29.11

29.45

−1.25

2.47

−2.69

1.84

Equation (21)

29.73

29.34

−1.82

2.68

−2.27

2.14