Coupling of a simultaneous heat and water model with a distributed hydrological model and evaluation of the combined model in a cold region watershed

• DOI: 10.1002/hyp.9514
• Publication Date: 2012-08-17T05:45:11Z
• Authors: Yanlin Zhang; Guodong Cheng; Xin Li; Xujun Han; Lei Wang; Hongyi Li; Xiaoli Chang; G. N. Flerchinger
• Keywords: Snowmelt; Hydrological modelling

Abstract Snow and frozen soil prevail in cold regions worldwide, the integration of these processes is crucial hydrological models. In this study, a combined model was developed by fully coupling simultaneous heat water with geomorphologically based distributed model. The simulates vertical lateral transfer as well fluxes capable representing effects snowmelt on regions. This evaluated using situ observations Binggou watershed, an experimental watershed for region hydrology Watershed Allied Telemetry Experimental Research Project. Results showed that able to predict freezing thawing, unfrozen content, snow depth reasonably well. simulated hydrograph good agreement observation. Nash–Sutcliffe coefficient daily discharge 0.744 entire simulation period, 0.472 from April June, 0.711 June November. can improve our understanding assess impacts global warming cycles resources. Copyright © 2012 John Wiley & Sons, Ltd.