Simulating low and high streamflow driven by snowmelt in an insufficiently gauged alpine basin

摘要: Snowmelt and water infiltration are two important processes of the hydrological cycle in alpine basins where snowmelt is a main contributor streamflow. In insufficiently gauged basins, hydrologic modeling useful approach to understand runoff formation process simulate this study, an existing model based on principles system dynamics was modified by using effective cumulative temperature (>0 °C) calculate rate, soil adjust influence soil’s physical state infiltration. This used streamflows Kaidu River basin from 1982 2002, including normal, high, low flows categorized Z index. Sensitivity analyses, visual inspection, statistical measures were employed evaluate capability various components Results showed that robust, able three categories well. The model’s ability reproduce streamflow low-flow normal-flow years better than high-flow years. also baseflow. Further, its spring-peak flow much summer-peak flow. study could provide information for managers determining allocations as well managing resources.