ANALYSIS OF OCEAN WATER BEHAVIOR IN THE SETO INLAND SEA AND THE PACIFIC OCEAN REGION USING AN UNSTRUCTURED GRID MODEL
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- NAKATANI Yusuke
- 大阪大学 大学院工学研究科地球総合工学専攻
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- TOMURA Yuki
- 大阪大学 大学院工学研究科地球総合工学専攻
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- NISHIDA Shuzo
- 大阪大学 大学院工学研究科地球総合工学専攻
Bibliographic Information
- Other Title
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- 非構造格子モデルを用いた瀬戸内海‐太平洋領域における外洋水の挙動解析
- 非構造格子モデルを用いた瀬戸内海-太平洋領域における外洋水の挙動解析
- ヒコウゾウ ゴウシ モデル オ モチイタ セトナイカイ-タイヘイヨウ リョウイキ ニ オケル ガイヨウスイ ノ キョドウ カイセキ
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Abstract
<p> A three-dimensional hydrodynamic model SCHISM using an unstructured grid in the horizontal direction was applied to the Seto Inland Sea – the Pacific region. We analyzed the behavior of oceanwater entering the Seto Inland Sea and the influence of Kuroshio meandering on the mass transport on a wide scale using the Lagrangian particle tracking method. The numerical model well reproduced the water temperature and salinity structure near the shelf and the coastal area and the Kuroshio flow path. When the Kuroshio began to break off, low-temperature Kuroshio subsurface water distributed in the depth of 200-500 m intruded to the bottom layer of Bungo and Kii channels. It was clarified that the cross-section discharges in Bungo and Kii channels are closely related to the Kuroshio meandering, and they fluctuate due to the influence of the ocean structure near the east and west shelf edges, respectively.</p>
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 76 (2), I_997-I_1002, 2020
Japan Society of Civil Engineers
