Relative influence of weather conditions and air pollutants on solar radiation – Part 2: Modification of solar radiation over urban and rural sites |
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| Authors: | Hamdy K Elminir |
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| Institution: | (1) Department of Solar and Space Research, National Research Institute of Astronomy and Geophysics (NRIAG), Cairo, Egypt |
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| Abstract: | Summary In the first part of this study, intensive measurements of particulate matter and trace gaseous were made to assess the characteristics
of air pollutants in 14 sites covering most of Egypt, and to present a clear picture about the relationship of air pollutants
with meteorology. The goal of this study is to examine the effect of weather conditions and air pollutants on the receipt
of solar radiation during cloudless days at five sites. The results have shown, that the relative attenuation of the total
solar radiation varied dramatically from 22% in winter to about 9.3% in summer. This finding may be attributed to PM10 and CO effects, which are in the highest level during winter. |
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