在具有复式河床的河流水文站上,当水流严重漫滩后,要保証搶測到漫滩水位以上的洪水流量,特别是峰頂水位附近的流量,目前还很困难。在这些測站,无疑会遇到延长漫滩水流情况下的水位流量关系曲线的問題。 At a river hydrological station with a double bed, it is still very difficult to ensure that the flow of floodwater above the floodplain level, especially the flow near the peak water level, can be guaranteed after severe flooding. At these stations, there is no doubt that there will be a problem of extending the relationship between the water level and the flow rate of the floodplain.