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Proceedings of the ISES Solar World Congress 2019
A recent update of the ISO 9060 standard for the classification of solar radiometers introduces the use of the clear sky spectral error. The spectral error is the change in responsivity that may occur when the spectral distribution of the incident solar radiation differs from the spectral distribution present at the time of calibration. Spectral errors may occur if the radiometer does not have a completely uniform spectral responsivity. This use of the clear sky spectral error is a significantdoi:10.18086/swc.2019.44.08 fatcat:ij7lichq3vf4vbvc5fobjc7po4