Contribution à l'analyse de la sécheresse, étude et prévisions : cas du bassin de l'Oued Isser ( w. Boumerdes))

Abstract

The objective of this thesis work is to contribute to the analysis of drought in the catchment of Isser. A presentation of the study revealed the different specifications of the basin and its various potentialities. The study of rainfall and runoff has noticed a lack of precipitation and runoff for selected stations in the basin, then the climate study of our study area has classified the climate of the watershed dominated largely by a semi-arid tends toward dryness by going south. Finally a statistical model of the relationship between certain parameters of the water balance such as precipitation and slides past has been developed, which can then allow to estimate the contributions for some basin. Solutions and recommendations that have been listed and to reduce the effects of drought in the watershed.