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基于长期观测的辽东湾口东部海域水动力特征研究

赵骞 王梦佳 丁德文 陈伟斌

赵骞, 王梦佳, 丁德文, 陈伟斌. 基于长期观测的辽东湾口东部海域水动力特征研究[J]. 海洋学报, 2016, 38(1): 20-30. doi: 10.3969/j.issn.0253-4193.2016.01.003
引用本文: 赵骞, 王梦佳, 丁德文, 陈伟斌. 基于长期观测的辽东湾口东部海域水动力特征研究[J]. 海洋学报, 2016, 38(1): 20-30. doi: 10.3969/j.issn.0253-4193.2016.01.003
Zhao Qian, Wang Mengjia, Ding Dewen, Chen Weibin. Study on hydrodynamic characteristics in the eastern part of Liaodong Bay Mouth based on long-term observation[J]. Haiyang Xuebao, 2016, 38(1): 20-30. doi: 10.3969/j.issn.0253-4193.2016.01.003
Citation: Zhao Qian, Wang Mengjia, Ding Dewen, Chen Weibin. Study on hydrodynamic characteristics in the eastern part of Liaodong Bay Mouth based on long-term observation[J]. Haiyang Xuebao, 2016, 38(1): 20-30. doi: 10.3969/j.issn.0253-4193.2016.01.003

基于长期观测的辽东湾口东部海域水动力特征研究

doi: 10.3969/j.issn.0253-4193.2016.01.003
基金项目: 海洋公益性行业科研专项(201005008,201305043);国家海洋局近岸海域生态环境重点实验室开放研究基金(201207)。

Study on hydrodynamic characteristics in the eastern part of Liaodong Bay Mouth based on long-term observation

  • 摘要: 辽东湾口东部海域是辽东湾与渤海中部进行物质和能量交换的主要通道之一。本文利用坐底式海床基平台获取的近8个月的水动力连续观测资料,通过谱分析和调和分析方法对该海域的潮汐、潮流特征进行分析,并讨论了余流及底层温度的季节变化规律。研究结果表明:该海域潮汐属于不规则半日潮,平均潮差为0.95 m,最大可能潮差为2.27 m。潮流属于不规则半日潮流,M2分潮流为其优势分潮流。主要分潮流运动形式为往复流,最大流速方向为西南-东北向。余流的季节性特征较为明显:秋季,余流流速在中层达到最大,流向以西南向为主;冬季,余流流速垂向变化较小,并呈西南偏西向流动;春季,流速随深度增加而减小,流向从表层至底层呈现逆时针旋转的特征。受底层潮流、水平温度梯度及海面温度日变化的影响,底层温度表现出短期的高频变化特征:秋季,短期振荡以半日周期信号为主;冬季,全日周期信号较为显著;春季,短期振荡的现象较弱。
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出版历程
  • 收稿日期:  2015-02-04
  • 修回日期:  2015-06-20

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