/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: DrEngachrafhentati https://cdn.slidesharecdn.com/profile-photo-DrEngachrafhentati-48x48.jpg?cb=1566165452 I am making research and teaching in Hydrology ( Dams and water Resources Management using Geomatic tools (GIS, Remote sensing). http://achrafhentati.com/