福建长乐海域水沙环境及海岸演变研究OACSTPCD
Research on hydrological sediment evolvement and coastal evolution in Changle sea area of Fujian
依托实测水下地形和水文泥沙资料,研究了福建长乐海域水沙环境及海床冲淤演变特征.研究结果表明:福建长乐海域为基岩岬角控制的沙质海岸,波浪较强、潮流流速小、水体含沙量低、海岸线及海床地形长期保持基本稳定状态;研究海域的常风向和常浪向均为NNE向,强风和强浪主要受台风及寒潮大风影响;研究海域属强潮海区,最大潮差为6.92 m,平均潮差为4.45 m;研究海域潮流属正规半日潮流,往复流特征明显;研究海域底质分布在横向上呈现近岸粗、深水区细的分布特点,近岸存在南北连续的砂质沉积带,波浪作用下自北向南输移的泥沙对海岸演变有一定影响.
The hydrological sediment environment and the evolution characteristics of seabed in the Changle sea area of Fujian Province were investigated in this paper,based on measured underwater topography and hydrological and sediment data.The research results indicate that the Changle sea area is a sandy coast controlled by bedrock capes,featuring strong waves,low tidal current velocity,low suspended sediment content in the water column,and a long-term stable coastline and seabed topography.The normal wind and wave directions in the research area are both NNE directions,and strong winds and waves are mainly affected by typhoons and cold waves.The research area is classified as a strong tidal sea area,with a maximum tidal range of 6.92 m and an average tidal range of 4.45 m.The current belongs to the regular semi-diurnal trend,with obvious characteristics of reciprocating flow.The distribution of sediment in the research sea area shows a horizontal distribution characteristic of coarse nearshore and fine in deepwater area.The nearshore sediment from north to south under wave action has a certain impact on coastal evolution.
扬懿;孙路;韩志远;王程浩;谢华亮
交通运输部规划研究院,北京 100028交通运输部天津水运工程科学研究所 工程泥沙交通行业重点实验室,天津 300456
水利科学
水沙环境海岸演变沙质海岸福建长乐
hydrological sediment environmentcoastal evolutionsandy coastChangle of Fujian Province
《水道港口》 2024 (002)
174-179 / 6
国家自然科学基金项目(52171260);中央级公益性科研院所基本科研业务费项目(TKS20230512)
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