Climate Change and Degradation of Surface Water: Mikkes Basin (morocco)

The Mikkes basin is located at the north centre of Morocco. The yearly approach of the P<2T ratio reveals a very bad monthly distribution of precipitations and a seasonal drought which is apparently observed well after the Eighties era. The extent of the drought can be shown clearly by the strong deficit of the river between the periods 1970-1979 and 1980-2000 which is considerable with around 75 % percentage. The analysis of the monthly medium flows between 1970 and 2000 shows a rough oceanic system and which is characterized by two hydrological seasons: one period of high waters in winters which is conditioned by the pluviometric contributions; in addition to another period of low waters and is conditioned by an evapotranspiration. The mode of this course can be a pluvio-evaporal type.