The snowmelt runoff forecasting model of coupling WRF and DHSVM

Q. Zhao, Z. Liu, M. Li, Z. Wei, S. Fang
2009 Hydrology and Earth System Sciences Discussions  
This study used the Weather Research and Forecasting (WRF) modeling system and the Distributed Hydrology-Soil-Vegetation Model (DHSVM) to forecast the snowmelt runoff in the 800 km 2 Juntanghu watershed of the northern slope of Tianshan Mountains from 29 February-6 March 2008. This paper made an exploration for snowmelt 5 runoff forecasting model combing closely practical application in meso-microscale. It included: (1) A limited-region 24-h Numeric Weather Forecasting System was established by
more » ... was established by using the new generation atmospheric model system WRF with the initial fields and lateral boundaries forced by Chinese T213L31 model. (2) The DHSVM hydrological model driven by WRF forecasts was used to predicate 24 h snowmelt runoff 10 at the outlet of Juntanghu watershed. The forecasted result shows a good agreement with the observed data, and the average absolute relative error of maximum runoff simulation result is less than 15%. The result demonstrates the potential of using meso-microscale snowmelt runoff forecasting model for flood forecast. The model can provide a longer forecast period compared to traditional models such as those based 15 on rain gauges, statistical forecast. Abstract 6, 3335-3357
doi:10.5194/hessd-6-3335-2009 fatcat:v4oj4lgukzbwnl5pmdfcaqvyvu