Clearness

K_T

Rs

Rns

Rnl

Rn_measured

Rn

Rn_BRUNT

Rn_FAO-24W

Rn_FAO-24D

Rn_FAO-56

Clear sky

0.83

20.13

15.50

−7.65

−7.51

−5.04

−4.66

10.25

Scattered clouds

0.60

17.50

13.48

−4.48

−4.36

−3.03

−2.39

10.44

Broken clouds

0.46

13.41

10.33

−2.62

−2.55

−1.78

−1.40

7.28

Overcast

0.26

7.50

5.77

−1.29

−1.26

−0.87

−0.02

3.05