Document Details

Document Type : Article In Journal 
Document Title :
Estimation of Turbidity and Global Radiation over Jeddah in Spring
تقدير العكارية وإشعاع القبة السماوية فوق مدينة جدة في فصل الربيع
 
Document Language : English 
Abstract : An experiment was performed for estimation of turbidity over Jeddah during Spring (March, April and May 1993). The measurements include direct. diffuse and global radiation, on clear days. The data are also incorporated in a radiation model for estimation of different components of solar radiation over Jeddah. The results showed that the turbidity and consequently the amount of aerosols in the atmosphere was maximum in April. This was accompanied by a strong south to southwest wind. The coefficient of turbidity (fj) reached (0.9) on 6 April, a very turbid day. On this day, the wave length exponent (a) approached zero. The diurnal variation of the turbidity showed an increase started at noon and extended all afternoon. The average Spring turbidity in Jeddah is (0.18). The results of the model indicate that the average percentage difference between the measured and the calculated direct, diffuse and global radiation are 8%, 15% and 5% respectively. The model used was successful, with an over all precision for direct and global radiation of 10% for Jeddah. This gives confidence that this model probably with some improvements, can be used for estimating global radiation over Jeddah on clear days when measurements of this parameters are not available. 
ISSN : 1319-1039 
Journal Name : Meteorology, Environment and Arid Land Agriculture Sciences Journal 
Volume : 7 
Issue Number : 1 
Publishing Year : 1416 AH
1996 AD 
Article Type : Article 
Added Date : Sunday, July 29, 2012 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
جعفر نشيد المحموديALMAHMOUDI, J NResearcherDoctorate 

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