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Home  >  Volume 21 (2012)

Theoretical estimation of global solar radiation and its derivatives in Katsina – Nigeria using temperature and relative humidity by Taura L. S., 2Darma T.H. and 3Sani Saleh Volume 21 (July, 2012), pp 135 – 142
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In this study, data of global solar radiation for Katsina station ( Lat 12o 59' 52" N, Long 7o 35' 5" E) in Nigeria was used to estimate weather parameters based on monthly mean daily extraterrestrial radiation, on the basis of temperature and relative humidity. The data was obtained from Nigeria Meteorological Agency (NIMET) for a period of five years (2006-2010). Correlation equations were obtained for the estimation of global solar radiation, using minimum to maximum temperature ratio and relative humidity respectively. The estimated values of the radiation parameters and global solar radiation were used to determine the derivatives for the location.    

Keywords: Global solar radiation; Extraterrestrial radiation, Relative humidity; Temperature and correlation equation.