The climate changes in the sub-basin of the Oum Er rbia central and the impact on the surface waters.Zhour Echakraoui, Ahmed. Boukdir, Olaide. Aderoju, El Hassan Ben – Saïd, Abdelhamid. Zitouni, Rachid El maslouhi and António Guerner DiasE3S Web Conf., 37 (2018) 03003DOI: https://doi.org/10.1051/e3sconf/20183703003