Rn estimation formulae

N

ET with Rn_estimated

b

R²

d

MRE

EF

(mm·day⁻¹)

(mm·day⁻¹)

ET (Rn_measured), dry month

1063

3.64c

-

-

-

-

-

ET (Rn_measured), wet month

4.56C

ET (Rn_BRUNT), dry month

1063

3.19d

0.8787

0.9536

0.9942

0.45

0.9807

ET (Rn_BRUNT), wet month

4.26D

0.9267

0.9391

0.9978

0.30

0.9917

ET (Rn_FAO-24W), dry month

1063

3.21d

0.8852

0.9534

0.9947

0.43

0.9823

ET (Rn_FAO-24W), wet month

4.30D

0.9339

0.9407

0.9981

0.26

0.9923

ET (Rn_FAO-24D), dry month

1063

3.79c

1.0355

0.9827

0.9990

0.15

0.9955

ET (Rn_FAO-24D), wet month

4.64C

1.0095

0.9628

0.9990

0.08

0.9950

ET (Rn_FAO-56), dry month

1063

3.85b

1.0531

0.9746

0.9983

0.21

0.9918

ET (Rn_FAO-56), wet month

4.77B

1.0374

0.9703

0.9985

0.20

0.9927

ET (Rn_Rs), dry month

1063

4.69a

1.2804

0.9630

0.9829

1.05

0.9075

ET (Rn_Rs), wet month

5.59A

1.2196

0.9668

0.9886

1.03

0.9413