Changes Detection and identification of erosion risk areas of Aji Chay River between Khaje to Vanyar

Extended abstract1- Introduction Changes in the human environment in different periods and in different areas it is reasonable by the satellite images, aerial photographs and maps in certain forms are easily done. This is particularly important when the data becomes more critical in areas such as environment, agriculture; Natural resource management and river engineering are used (Pris and etal, 1997, 23). Therefore, in order to discover and detect changes that occur in different regions of the Earth Can ensure that remote sensing technology and satellite images in a sequence-specific forms used (Atood and al. 2005, 8)And their results in the prediction, risk maps, choosing the right strategies to deal with behaviors sudden, More Accurate and more economical operation than to past and successfully implemented projects and structures of organizations and agencies On the rivers for future use. Thus, the geometry changes, the process of depositing and important morphological changes in the organization of the river, flood control, design of linear structures (roads, ...) Hydraulic (bridges, dams, ...) settlements and destruction of agricultural lands on the river and its margins are evaluation of morphological changes part of river Ajy Chay between Khaje to Vanyar, north east of Tabriz 46° 23' 55" to 46° 34' 55" along the eastern and 38° 07' 1" to 38° 08' 40" north latitude Length of approximately 22 km with the aim of identifying risk areas to the lateral erosion investigated.Of studies on the following can be noted: Table 1. Studies on the topic of domestic and foreignNames of authorsyearTopicResultJavaheri et al2005Morphological changes of Karun RiverDevelopment process is reversed Meander rings.Karami2007Effective factors in the erosion of river Saidabad ChayIdentify areas with low risk, moderate to severe.Dadrasi sabzevar2007Study privacy and deformation of river use Rs &GISGIS & Rs powerful techniques to study changes.Aswathy et al2007Factors Influencing the Sinuosity of Pannagon River IndiaVegetation and tectonics play a major role.Lofthouse & Rabert2008Riffle-Pool Sequences and Meander MorphologyBoth factors are influential in forming Meander.Matti kummu et al2008"Riverbank Change Along The Mekong River.Estimated average lateral erosion. 2- MethodologyHow it works for this research have been carried out, the first report-required information and report about the range of research and library-based methods and field studies were collected. In the second stage, maps and aerial photos have been scanned, georefrenced, mosaic. In the third stage of the c