Incorporating accumulated temperature and algorithm of snow cover calculation into the snowmelt runoff model
Accurate simulation of snowmelt runoff is of much importance in arid alpine regions.Data availability is usually anobstacle to use energy-based snowmelt models for the snowmelt runoff simulation and temperature-based snowmelt models are more appealing in these regions.The SRM model is very popular nowadays,especially in the data sparse regions,for only temperature,precipitation and snow cover data are required for inputs to the model.However,this model uses average temperature as index,which cannot reflect the snowmelt simulation in the high altitude band.In this study,the SRM model is modified based on accumulated active temperature.Snow cover calculation algorithm is added and is no longer needed as input but output.This makes the model able to simulate long-time runoff and long- time snow cover variation in every band.Examination of the improved model in the Manas river basin showed that the model is effective.It can reproduce the behavior of the hydrology and can reflect the actual snow cover fluctuation.
SRM activetemperature snowcover snowmeltrunoffsimulation
Yu Meiyan
Liaoning Research Institute of Water Resources and Hydropower
国内会议
广州
英文
476-486
2013-11-01(万方平台首次上网日期,不代表论文的发表时间)