Multi-station Calibration of Snowmelt Runoff Model (SRM) Using Remote Sensing Tools in Aji-Chay Basin, Iran

Global warming and climate change affect the depletion of available water resources and limited access to new resources in recent years. Due to these issues, the essential of managing water resources feels more than ever. Water resources have been one of the most important topics in recent years, and many types of researches have been done so far (Rulin et al., 2008). Snow is one of the essential factors in maintaining and sustaining people's livelihood. The snowmelt runoff model (SRM) is a degree-day based method. The SRM was presented to calculate the snowmelt impact on watershed daily runoff (Martinec, 1975). The SRM was successfully applied in some basins to simulate melt season runoff (Zhang et al., 2014; Tekeli et al., 2005). Multi-station calibration has been used in this study that is a useful way to overcome the limitations of Single-site calibration strategy (e.g. large scale basins with much spatial variability).