Modeling and Analysis of Diffuse Solar Radiation in Jazan, Kingdom of Saudi Arabia

A. M. Fathy

Abstract: This study presents an analysis of diffuse solar radiation and diffuse fraction over the Jazan region in Saudi Arabia using historical solar radiation and meteorological data collected from 1983 to 2005. The investigation explores the influence of atmospheric turbidity, cloud cover, humidity, and seasonal variations on diffuse radiation levels. Multiple regression models were applied to derive empirical correlations based on clearness index and sunshine duration. Results indicate pronounced seasonal differences, with higher diffuse fractions during summer months due to increased dust storms and turbidity. The findings have practical implications for optimizing solar energy systems, particularly in regions with similar climatic patterns.

Keywords: Diffuse solar radiation, clearness index, atmospheric turbidity, solar energy modeling and Jazan climate

How to Cite?: A. M. Fathy, "Modeling and Analysis of Diffuse Solar Radiation in Jazan, Kingdom of Saudi Arabia", Volume 14 Issue 12, December 2025, International Journal of Science and Research (IJSR), Pages: 1917-1920, https://www.ijsr.net/getabstract.php?paperid=SR251221134227, DOI: https://dx.doi.org/10.21275/SR251221134227