Braided river is one, of the landforms that spread on alluvial fans. Assessment of evolution and formation of this landform is very important in arid regions, because of Probability of hazard in settlement area.
Alluvial fans of Tangoeieh river is one of the largest fans in sirjan basine. The goal of this research is assessment of changes of braided river on the alluvial fans. For achive to this objective, the aerial photos of two different time has used.
In this reaserch we have used from some software, such as Freehand, Microstation and Photoshope for compare the changes in two time. Evidense has showed that in short time the changes of braided rivers is result of flooding and yield of sediment and changes in long period of time is result of tectonic activity.
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