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Watershed based hydrological evolution under climate change effect: An example from North Western Algeria

descriptionPublicationkeyboard_double_arrow_right Article , Conference object , Journal , Other literature type 01 Apr 2020 France Publisher:Elsevier BVJournal:Journal of Hydrology: Regional Studies, volume 28, page 100,671 (issn: 2214-5818,

Authors: Hadour, Ali; Mahe, Gil; Meddi, Mohamed;

doi: 10.1016/j.ejrh.2020.100671

Watershed based hydrological evolution under climate change effect: An example from North Western Algeria

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Abstract

Study Region: Three major river basins the Cheliff, Tafna and Macta in North-West Algeria. Study focus: The purpose of this work is not to test the different climate models but rather to study the sensitivity of hydrological parameters to future climate change. This is achieved using the GR2M hydrological model and climate scenario data from the CNRM-CM5 model. New hydrological insights: In terms of observed trends, the monthly flows decreased significantly between 1970 and 1999, mainly due to the decrease in precipitation combined with the increase in the potential evapotranspiration (PET), caused by rising temperatures. According to the RCPs8.5 and 4.5 scenarios projections, the decrease in Winter discharges will continue in the future. For the Spring, RCP8.5 forecasts a moderate increase, while RCP4.5 shows a downward trend. Keywords: Algeria, Climate change, CNRM-CM5, PET, Flow, GR2M

Country

France

Related Organizations

Laboratoire Parole et Langage
France
École Centrale de Lyon
France
Laboratory HydroSciences Montpellier
France
Institut National des Sciences de l Univers
France
École Nationale Supérieure d'Hydraulique
Algeria

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Keywords

Physical geography, QE1-996.5, 550, Flow, CNRM-CM5, Geology, 551, GB3-5030, PET, Algeria, [SDU.STU.HY] Sciences of the Universe [physics]/Earth Sciences/Hydrology, Climate change, GR2M

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