Changes in tidal currents in the ariake sound due to reclamation
Changes in tidal currents in the ariake sound due to reclamation
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DOI：
10.1007/bf02784289
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发表时间：
2006-08
影响因子：
2.7
通讯作者：
A. Manda;K. Matsuoka
中科院分区：
文献类型：
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作者：
A. Manda;K. Matsuoka
有宅海湾位于日本西部，是一个高产的河口。渔业的减少以及赤潮和缺氧的频繁发生表明该海湾的生态系统正在恶化。通过数值实验研究了潮流的变化，这可能是造成恶化的原因之一。考察了可能改变潮流的声音地形的两个主要变化。这些是在海湾最深处的填海工程和在一个名为伊沙亚湾的小海湾建造堤坝的工程。数值试验表明，填海使海湾最内侧的大范围潮流减少了10%以上。与围垦相比，堤防对潮流的影响是相对局部的；潮流显着减少的区域大多位于亚湾。
The Ariake Sound is a highly productive estuary located in the western part of Japan. The decline in fisheries and the frequent occurrence of red tides and hypoxia indicate a deterioration in the ecosystem of the sound. A change in tidal currents, which is one of the possible causes of the deterioration, was investigated by numerical experiments. Two major changes in the topography of the sound, which may have changed the tidal currents, are examined. These are the reclamation in the innermost part of the sound and the construction of a dyke in a subembayment called Isahaya Bay. The numerical experiments show that the reclamation caused the tidal currents to decrease by more than 10% over a large area in the innermost part of the sound. The influence of the dyke on the tidal currents is relatively local compared to the reclamation; the area where tidal currents significantly decrease is located mostly in the subembayment.