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根据汉口站 195 2～ 1998年实测断面和流量等资料并运用水位流量关系单值化技术 ,分析该站水文断面年内、年际冲淤变化规律以及大水年份水位流量关系的变化。结果表明 ,汉口站水文断面年内冲淤变化幅度呈减小趋势 ,年际冲淤变化中 ,195 2～ 1987年呈淤积状态 ,1988年起出现冲刷迹象 ;大水年份水位流量关系均在 195 4年的关系曲线上下摆动 ,无明显趋势变化
According to the measured data of cross section and flow of Hankou Station from1919 to 1998 and using the single value relation of water level and flow rate, the change of ebb and flow in the hydrological section of this station during the year, interannual scouring and silting, and the water level in large flood year are analyzed. The results show that the variation range of erosion and deposition in the hydrological section of Hankou Station shows a decreasing trend during the year. During the interannual erosion and deposition changes, siltation occurs from1995 to 1987 and shows signs of erosion from 1988 onwards. The relationship curve of the year fluctuated, with no obvious trend change