秦皇岛海域海流特征及规模化养殖对其影响的观测研究

赵骞; 陈玥; 陈元; 丁德文; 胡展铭

doi:10.3969/j.issn.0253-4193.2019.06.003

秦皇岛海域海流特征及规模化养殖对其影响的观测研究

doi: 10.3969/j.issn.0253-4193.2019.06.003

1.
国家海洋环境监测中心海洋动力室, 辽宁大连 116023;自然资源部第一海洋研究所海岛海岸带研究中心, 山东青岛 266061
2.
上海海洋大学海洋科学学院, 上海 201306国家海洋环境监测中心海洋动力室, 辽宁大连 116023
3.
国家海洋环境监测中心海洋动力室, 辽宁大连 116023
4.
自然资源部第一海洋研究所海岛海岸带研究中心, 山东青岛 266061

基金项目: 国家海洋局近岸海域生态环境重点实验室开放基金（201709，201706）；海洋公益性行业科研专项（201305043）。

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出版历程
- 收稿日期: 2018-04-02
- 修回日期: 2018-06-05

Current characteristics and its response to large-scale mariculture in Qinhuangdao coastal area based on in-situ observation

1.
Department of Marine Dynamics, National Marine Environmental Monitoring Center, Dalian 116023, China;Research Center for Island and Coast Zone, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
2.
College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, ChinaDepartment of Marine Dynamics, National Marine Environmental Monitoring Center, Dalian 116023, China
3.
Department of Marine Dynamics, National Marine Environmental Monitoring Center, Dalian 116023, China
4.
Research Center for Island and Coast Zone, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China

摘要

摘要: 秦皇岛海域是辽东湾与渤海中部及渤海湾进行物质和能量交换的重要通道。本文基于海床基观测平台获取的夏秋季海流连续观测资料，运用调和分析和滤波等方法对该海域的海流特征及其对规模化养殖的响应进行了研究。结果表明：秦皇岛海域最显著的潮流是M₂分潮流，其最大流速介于20.0~36.9 cm/s之间，远小于辽东湾东部海域M₂分潮流最大流速；秋季秦皇岛海域余流流速介于0.2~2.5 cm/s之间，整体上较辽东湾东侧海域余流弱，辽东湾底层可能存在逆时针的弱环流系统；夏季秦皇岛海域M₂和K₁分潮流的最大流速均大于秋季；养殖活动对余流影响较大，养殖区中部A7、A8站余流的垂向平均流速比养殖区边缘A6站分别减小76%和18%左右。
- 秦皇岛海域 /
- 养殖区 /
- 潮流 /
- 余流 /
- 调和分析
Abstract: The Qinhuangdao coastal area is a significant passage through which the substance and energy are exchanged among the Liaodong Bay, the central of Bohai Sea and the Bohai Bay. In this paper, based on the in-situ current data obtained from seabed-based platform continuously in the Qinhuangdao coastal area in summer and autumn, we study the characteristics of current and its response to large-scale mariculture by means of harmonic analysis and filtering. The results are shown as follows:the most prominent semi-diurnal tidal current is the M₂ tidal component with the maximum tidal velocity ranging from 20.0 cm/s to 36.9 cm/s, which is much smaller than the maximum velocity of M₂ tidal current in the east side of Liaodong Bay. In autumn, the velocities of the residual currents in the Qinhuangdao coastal area, which are between 0.2 cm/s and 2.5 cm/s, are weaker than those in the east side of Liaodong Bay. Meanwhile, there may exist a weak clockwise circulation in the bottom of the Liaodong Bay. In summer,the maximum velocities of M₂ and K₁ tidal current components are larger than those in autumn. Aquaculture activities have a greater impact on the residual currents. Compared with the vertically-averaged residual current in site A6 which located at the edge of the culture zone, the currents of A7 and A8 sites located in the central of the culture zone decrease by almost 76% and 18%,respectively.
- Qinhuangdao coastal area /
- culture zone /
- tidal current /
- residual current /
- harmonic analysis

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