بررسي اثر تغيير اقليم بر توزيع زماني جريان رواناب ناشي از ذوب برف در حوضه دز

Study on the effect of climate change on snowmelt runoff timingin in Dez Basin

The effects of climate change and changes on snowmelt runoff timing is very important in the rivers with snowmelt runoff regime. In this study the snowmelt runoff model (SRM model) and world climate change model (ECHAM4 model) are applied in order to study the effects of climate change on snowmelt runoff timing with two scenarioes (A & B) for next 50 years (2000- 2050) in dez basin in the southwest of iran. Research results showed that the peak time of snowmwlt runoff will change from spring to winter and the winter streamflow is going up and the spring stream flow is going down. The summer stream flow is going down slightly and the atumn stream flow will not change considerably.