تحليل المعدلات الشهرية للاشعاع الشمسي المباشر فوق العراق للفترة 1900- 2009

Abstract

The knowledge of the properties of the solar radiation and determine its value and the temporal and spatial distribution of the important things in many models of solar radiation used locally and globally.The aim of this research is to analyze measurements of direct solar radiation over Iraq by using data from European Center for Medium -range Weather Forecasts (ECMWF). This data included for Iraq the monthly means of direct solar radiation for the period from 1900 to 2009 for each the cities of Mosul, Baghdad, Rutbah and Basrah. The results indicated that the maximum value of the direct solar radiation occur during the month of June for all stations, as results showed that Rutbah characterized by the highest annual rate of direct solar radiation either Mosul and Baghdad were the annual rates of direct solar radiation very close.