| 海南东寨港红树林港湾潮汐动力研究 |
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| 引用本文： | 倪海祥,张乔民,赵焕庭.海南东寨港红树林港湾潮汐动力研究[J].热带海洋学报,1996(4). |
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| 作者姓名： | 倪海祥 张乔民 赵焕庭 |
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| 作者单位： | 华东师范大学河口海岸研究所，中国科学院南海海洋研究所 |
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| 基金项目： | “八五”国家科技攻关项目,华东师范大学河口海岸动力沉积,动力地貌综合国家重点实验室开放基金 |
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| 摘 要： | 在海南东寨港林市村附近红树林港湾潮汐动力测量的基础上，建立二维可移动边界有限元数值模型，研究红树林港湾浅水湖滩潮流场特征。实测与计算结果表明，潮沟区流速最大，具驻波特征，呈明显时间－速度不对称，东潮沟涨潮优势，百潮沟落潮优势，整个港湾水体呈顺时针循环。白滩与林地周期性淹没，白滩流速较湖沟略小。林地曼宁系数为白滩的１０倍，流速小于１０ｃｍ·ｓ（－１），约为相应潮沟流速的１／１０。林地如去掉林木，流速可增加３倍以上，流向也有变化。
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| 关 键 词： | 红树林港湾，潮汐动力学，数值模型 |
A STUDY ON THE TIDAL HYDRODYNAMICS OF THE MANGROVE HARBOR IN DONGZHAIGANG HARBOR, HAINAN ISLAND |
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| Ni Haixiang.A STUDY ON THE TIDAL HYDRODYNAMICS OF THE MANGROVE HARBOR IN DONGZHAIGANG HARBOR, HAINAN ISLAND[J].Journal of Tropical Oceanography,1996(4). |
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| Authors: | Ni Haixiang |
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| Abstract: | ur work is based on some field surveys of the tidal level and tidal current near Linshicun village of Dongzhaigang Harbor in Hainan Province. We set up a two-dimensional finite model with moving boundary for the tidal current field of mangrove harbor shallow waters,calculated the current field and made relative analyses. Our result shows that the tidal current in the tidal creeks has the features of standing wave and time-velocity asymmetry, a stronger flood current than ebb current in the eastern tidal creek, but a reversed condition in the west that results in a clockwise circulation in this harbor. The current velocity in tidal flats without mangroves is less than that in tidal creeks. The current velocity in tidal flats with mangroves is only about one tenth of that in tidal creeks, and velocity will increase more than 3 times when the mangroves are moved off.The direction of the tidal Current will also alter in some degree. |
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| Keywords: | mangrove harbor tidal hydrodynamics numerical modeling |
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