Discussion on the Design of Overstandard Flood Measurement Method at Shangyou Hydrological Station
The annual variation of incoming water and sediment at Shangyou Hydrological Station is significant,with uneven distribution within the year,mainly concentrated in the flood season.The characteristics are sudden rise and fall,short duration,and high sediment content.The flood mainly comes from precipitation,mainly rainstorm flood,and the water and sediment peaks are basically corresponding.When the instantaneous flow rate of a flood exceeds 460 m3/s,it is considered an excessive flood.When an excessive flood flow rate occurs,flow measurement could be carried out using methods such as electric wave flow meter,float method,and slope-area method based on changes in water level and flow rate.Choosing a suitable testing method helps to accurately measure the flow and instantaneous flood volume of overstandard floods,providing accurate data support for flood prevention and control.
万方数据
维普
