Lect. Sami Abdul-Hafiz Al-Zanad 2026. The Impact of Climate Change on the Duration of the 5700-Meter thickness line Level over Iraq and Its Relationship to Changes in the Duration of Surface Pressure Systems During the Rainy Season (1948/1949–2016/2017) A Study in Synoptic Climate Change. Journal of College of Education. 65, 1 (Nov. 2026), 543–574. DOI:https://doi.org/10.31185/eduj.Vol65.Iss1.5426.