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Faculty of Environmental Sciences
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 22, 2012
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
محمد أيمن عبد الله
ABDULLAHM, Mohamed A.
Researcher
Doctorate
Files
File Name
Type
Description
33994.pdf
pdf
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