Document Details

Document Type : Article In Journal 
Document Title :
The global and UVB radiation over Egyp
الإشعاع الكلى و الأشعة فوق البنفسجية – ب فوق مصر
 
Document Language : English 
Abstract : The global and UVB radiation over Egypt Abstract The estimation of ultraviolet-B radiation daily intensity is important to provide information to the public about the potential detrimental effects on health from sun exposure. The overall goal of this work is to initiate the relation between UV-B radiation and global radiation over Egypt. The relationships between the global solar radiation and UV-B radiation at four stations of Egypt has been studied, then deducing linear empirical formulas for estimating UV-B from global radiation at these stations. The deduced equations are applied to calculate the UV-B radiation for another stations where UV-B radiation measurements are unavailable, using records of global radiation at these stations. Because of the periodicity of variations in solar radiation, Global and UV-B radiation, their non-dimensional values are expanded in Fourier series. Fourier coefficients were determined by using measured global solar radiation data of the selected stations. These coefficients were used to calculate UV-B radiation based on global solar radiation for the same stations. A comparison between observed and calculated UV-B radiation arising from the two methods of estimation is presented. The comparison shows a good agreement between the observed and estimated UV-B radiation. The application of linear regression method to calculate solar radiation for another station where UV-B radiation measurements are unavailable is better than the application of Fourier coefficients method. 
ISSN : 1141-1151 
Journal Name : Atmósfera 
Volume : 20 
Issue Number : 4 
Publishing Year : 1427 AH
2007 AD 
Article Type : Article 
Added Date : Monday, January 23, 2012 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
حشمت عبدالباسط محمدMohamed, Heshmat Abdel BassetInvestigatorDoctorateheshmatm@yahoo.com

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