SOLAR GLOBAL AND ULTRAVIOLET RADIATION MEASUREMENTS OVER KUWAIT

Abstract

Data presented here for continuous measurements of global (285-2800 nm) and ultraviolet solar radiation (295-385 nm) are on horizontal level, which have been carried out for three years in Kuwait from January 96 to December 98. The ratio of monthly daily ultraviolet to global solar radiation was found to lie between 4.07% and 5.4%. The highest and lowest intensity monthly-daily recorded values for global radiation were 9.29 and 0.45 Kwh/m2 but for ultraviolet 445 and 31 Wh/m2 respectively. Dependence of the global and ultraviolet solar radiation on the atmospheric humidity was investigated. Linear regression functions were obtained with coefficient of determination R2> 0.7. The decrease in ultraviolet solar radiation from 270 to 240 Wh/m2 justifiably as a result of increasing the chemical pollutants SO2 and NO2.