A yardang in the Algerian desert. A feature caused by wind erosion. The ‘pedestal’ effect is created by wind-blown sand whose cutting force is strongest near ground level. (A yardang in the Algerian desert.
Read at : http://ijabbr.com/upload/IJABBR-2013-1143.pdf GIS-based Monitoring and EWSs of Desertification (Case study; southeastern of Iran) ABSTRACT Today one of the ecological crisis is the phenomenon of desertification that affecting the world.