بررسي اولويت پتانسيل سيل خيزي زير حوزه هاي آبخيز و تعيين مناطق مولد سيل در آن (مطالعه موردي: حوزه آبخيز مارمه-استان فارس)

Investigation of Flooding Potential Rank of Sub basins and Determination of Flood Reproductive Regions (Case Study: Marmeh Watershed - Fars Province)

Determination of flood reproductive regions and flooding potential ranking can have important role of big watershed management. The Marmeh watershed selected for this research, because very floods had occurred. In this research, by using GIS and HEC-HMS model based on SCS CN method, the amount of proportion of sub basins on total flood has determined. For this purpose, by using the successive single sub basin elimination method in HEC-HMS model, flooding potential of sub basins has ranked. The results show that only area of sub basin does not affect on flooding potential, location of sub basins and flood routing in Main River can have significant impacts, too. Finally, Joachim sub basin has the maximum of proportion in total flood of watershed and Casabas sub basin has the least of flooding potential.