“…Thus, the detection of trends and variations in long hydroclimatological series is relevant for climate change mitigation and adaptation strategies. Particularly, Nord African countries suffered economically, socially and ecologically from drought during the last decades as in Morocco during years from 1980 to 1985 and from 1991 to 1995 (Tsiourtis, 2001;Singla et al, 2010;Khomsi et al, 2016;Zamrane et al, 2016aZamrane et al, , 2016b, in Algeria (Taibi et al, 2017(Taibi et al, , 2019Hadour et al, 2020;Hallouz et al, 2020 andin Tunisia (Bargaoui et al, 2014;Kotti et al, 2016;Tramblay et al, 2019). Natural systems and human activities are most at risk due to lack of regular water supply during the year.…”