Erratum to: Theor Appl Climatol (2009) 96:395–406

DOI 10.1007/s00704-008-0048-y

The original version of this article unfortunately contained mistakes.

The definitions used in Eq. 10 in page 7 were corrected as follows:

$$ MAD = \frac{1}{n}\sum {_{{i = 1}}^n\left( {\left| {{L_g}{\__{{horizontal}}} - {L_{{gi}}}} \right|} \right)} $$
(10)
MAD:

Mean absolute difference

Lgi:

Global irradiance at ith pixel, integrated from wavelength λ 1 to λ 2 [Wm2sr1μm1]

Lg_horizontal:

Global irradiance on a horizontal plane, integrated from wavelength λ 1 to λ 2 [Wm2sr1μm1]

Equation 11 in page 8 should appear as follows:

$$ MD = \frac{1}{n}\sum {_{{i = 1}}^n\left( {{L_{{g\_horizontal}}} - {L_{{gi}}}} \right)} $$
(11)
MD:

Mean difference