تحليل التباين المكاني للمتوسط اليومي لإجمالي الإشعاع الشمسي و درجة الحرارة المرتبطة به لعام 2017 في مناطق مختارة من المملكة العربية السعودية

الملخص EN

This study deals with estimating the daily average of global solar radiation during 2017 by applying the Hargreaves-Samani model, which depends on a series of mathematical equations that are used to calculate the global extraterrestrial solar radiation (Ra) using the maximum and minimum temperatures of the twelve locations of Saudi Arabia.

And The study methodology covered the analysis of the spatial distribution of insolation duration, the thermal range, in order to analyze the correlations between the global solar radiation as independent variable and these elements as dependent variables.

Also, the correlation is analyzed between and the daily global solar radiation as the dependent variable and the insolation duration as the independent variable.

The results of this study have shown that the daily average solar radiation increases from 0.5 MJ/nr/day between the North and the South and that the minimum daily solar radiation does not exceed 20 MJ/rn2/ day while the maximum daily solar radiation reaches 35.0 MJ/rn2/ day.

The used data of 2017 revealed that the West Coast has the lowest correlation coefficient for the relationship between the daily solar radiation in part and the insolation duration, the maximum temperature and the thermal range.

While the Eastern coast has the highest correlation coefficient between the maximum temperature and the insolation duration.

And the Central region is characterized by the highest correlation coefficient between the daily solar radiation and the thermal range.