摘要
1996年 9月在黄河口新口门附近海域设置 3个断面 9个站位 ,对海流、水温、盐度和含沙量进行了连续 2个潮周期多层次同步观测。结果表明 :新口门属不正规的半日潮型。流速口门前大于两侧 ,左侧最小 ,深水区大于浅水区 ,流速垂向分布呈不均匀现象 ,表层大于底层频率最高。含沙量垂向分布为上小下大 ,泥沙输移方向口门处与径流方向一致 ,其它部位与潮汐相对应。泥沙扩散范围达 50 0 km2。
A hydrographic and sand content survey was conducted in the new Yellow River entrance sea area in September,1996. It is shown from the survey results that the tide in the entrance sea area belongs to irregular semidiurnal tide. The current speed in front of the entrance is higher than those on either side of the entrance with that on the left side of the entrance being the lowest,the current speed is higher in the deep water area than in the shallow water area,and the current speed is vertically nonuniform with the surface one being mostly higher than the bottom one. The sand content increases with increasing depth,the sand transport direction at the river entrance is consistent with the runoff direction,and that in other entrance sea area is in correspondence with the tidal current direction. The sand dispersion range is as large as 500km 2.
出处
《海岸工程》
2000年第4期5-11,共7页
Coastal Engineering
