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Yosfi Andri

Abstract

This study discussed about the relationship between three components of solar irradiance (Ultra Violet (UV), Near Infra-red (NIR) and Photosynthetically Active Radiation (PAR)) and global irradiance measured at Bukit Kototabang in 2012. The relationship was carried out by calculating the ratio between global irradiance and each of the solar irradiance components, as well as by determining the correlation coefficient values. The results indicated that the approximation of global solar irradiance components is 5% UV, 55% NIR and 45% PAR. Also, the ratio between UV and global solar irradiance suggested that the water vapour content in Bukit Kototabang is relatively high

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