耦合不同融雪方法的黄河源区径流模拟与评估OA

The Yellow River source region is an important runoff producing area in the Yellow River Basin,and it is necessary and effective on which to simulate snow melting.In order to en-rich the model library of the Yellow River hydrological forecast system and promote hydrological model research in alpine areas,a simple GR4J model is coupled with three different snowmelt simulation methods here to simulate the daily runoff of the region above Tangnaihai hydrological station.The results show that:①The GR4J model is suitable for hydrological simulation in the source region of the Yellow River;②The inclusion of snowmelt simulation method can effectively improve the accuracy of runoff simulation in the source region of the Yellow River;③ The WASMOD-GR4J model has the most significant improvement effect on runoff simulation in the Yellow River source region,while the CemaNeige-GR4J model has the most robust response to the climate change.The results not only provides a simpler model selection for runoff simulation in the Yellow River Basin,but also provides an important support for model comprehensive decision-making.