Investigating the Accuracy of IRI Model for the Ionospheric TEC parameter during Strong, Severe and Great Geomagnetic Storms from 2000-2013. Iraqi Journal of Science. 2023;57(3A):2075-2095. Accessed November 22, 2024. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/9964