Zana Saleem Mohammed1 and Gzing Adil Mohammed 2021. Global solar irradiance is one of the main significant factors for designing and considering the volume of any solar station beside of it is usage in agricultural and building issue. Due of lack a precise information about the irradiance in Iraq metr. Zanco Journal of Pure and Applied Sciences. 33, 5 (Oct. 2021), 43–50. DOI:https://doi.org/10.21271/ZJPAS.33.5.5.