[Study of muddy flows, "sails", in northern Bekaa using sig and remote sensing - Wadi-Elfakeh case]

ABSTRACT

Flash flood or "sail", is a typical flow of mud through dry valleys which are located in an arid and semi-arid area. It is the outcome of torrential rain which occurs suddenly during the end of the wet season and covers the dry valley of Assi river. It causes catastrophic consequences on the environment and the economy of some villages in the North Beqaa. It is essential to make a comprehensive study on the dry valley of Fakehe village which includes an analysis of the geo-morphological, hydrological, and climatic factors