Rapid urbanization have resulted in increasing water supply in urban areas and further led to more water dissipation from urban water uses.When calculating water dissipation,traditional hydrological models only considered evaporation from precipitation,usually ignoring the dissipation due to human water consumption.In order to analyze the urban water consumption process and better understand the urban water dissipation(UWD) mechanism,the UWD calculation model was developed based on the observation of the ur...