岡山県児島湾における潮汐過程と底質移動
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- 大久保 賢治
- 岡山大学
書誌事項
- タイトル別名
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- Tidal and Sediment Processes in Kojima Bay, Okayama, Japan
抄録
Tidal resonances among dominant components are detected by means of spectral analyses of temperature records obtained in- and outside Kojima Bay, Okayama Prefecture. The resonant modes are diurnal, semi-diurnal, and higher constituents with frequencies of N cycles per day (N<6) and they are considered as longitudinal internal seiches or oscillation of the embayment scale. Near the closed end of the bay, the uni- and bi-nodal modes of lateral internal seiches are found to be dominant and the internal waves with periods of a few days are also noticed in the lower layer. Bed material around seiching nodes is expected to be coarser and the fact is reported in the reference. The finer sediment is moving with nutrients toward the mouth to the inland sea. The longer retention in the sediment is one of the biggest issues in the coastal environment.
収録刊行物
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- Laguna(汽水域研究)
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Laguna(汽水域研究) 20 (0), 31-44, 2013
汽水域研究会
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詳細情報 詳細情報について
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- CRID
- 1390862623772018176
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- ISSN
- 21852995
- 13403834
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
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- 抄録ライセンスフラグ
- 使用可