Evaluation Of Changes In Sand Dunes In Southwest Of Sabzevar By Satellite Images
Journal: International Journal of Scientific & Technology Research (Vol.3, No. 10)Publication Date: 2014-10-15
Authors : Abolghasem Amirahmadi; Kazem Aliabadi; Maryam Biongh;
Page : 120-128
Keywords : Index Terms Sand Dunes; Mazinan Salt Desert; Remote Sensing; Change Detection;
Abstract
Abstract Carrying and spreading soil particles is called aeolian process and it is a main problem in arid and semi-arid regions in the world that threatens urban life buildings agricultural farms and even human health. This paper intends to evaluate sand dunes changes determining of direct and amount of movement in southwestern part of Sabzevar Mazinan salt desert. IRS Satellites images LISS III radiometer of 2006 and 2013 with spatial resolution of 23.5 meters and also PNA radiometer images with spatial resolution of 2.5 meters have been used to perform this research. Change detection technique has been used by method of images differencing in MATLAB software environment that is one of the most useful techniques in remote sensing. Results of this research show that sand dunes direct to the west and the southwest and amount of their displacement is in a range of 12 to 62 meters during a period of seven years in different areas of this region.
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