台風８８１８号の通過に伴い発生した相模湾の急潮に関する数値実験

• 井桁 庸介

• 北出 裕二郎

• 松山 優冶

書誌事項

タイトル別名

• Numerical Experiments on the Kyucho Current in Sagami Bay Associated with the Coastal-Trapped Waves Caused by Typhoon 8818
• タイフウ 8818ゴウ ノ ツウカ ニ トモナイ ハッセイ シタ サガミワン ノ キュウチョウ ニ カンスル スウチ ジッケン

抄録

Numerical experiments were performed using a multilevel model to clarify the generation mechanism of Kyucho (i. e. a coastal stormy strong current, induced by the Typhoon passage in Sagami Bay). The Typhoon 8818 was applied to the model domain. A solitary coastal-trapped wave (CTW) accompanied by a strong coastal current was produced along the east coast of Boso Peninsula by the southward wind associated with the Typhoon. The CTW changed its wave properties from a quasi-barotropic to baroclinic motion off the southeast coast of Boso Peninsula, with the rapid change of the bottom topography. The change of wave properties strengthened the current near the coast. After about 2 days of maximum wind at Choshi, the CTW, accompanied with a strong current, propagated into Sagami Bay, and caused the Kyucho in the bay. These results were sufficient to explain the characteristics of the Kyucho along the west coast in Sagami Bay as induced after passing of Typhoon 8818 in September 1988. The numerical experiment also indicated that the Kyucho exchanged about 43% of the surface water (above 30 m depth) in Sagami Bay.

収録刊行物

• 海の研究

  海の研究 12 (6), 603-617, 2003

  日本海洋学会

キーワード

• 沿岸捕捉波
• 急潮
• 相模湾
• 台風
• 連続成層モデル
• 海水交換

詳細情報

• CRID: 1390282679358520960
• NII論文ID: 130004387654
• NII論文ID: 110003368812
• NII書誌ID: AN10382760
• DOI: 10.5928/kaiyou.12.603
• ISSN: 21863105
• ISSN: 09168362
• NDL書誌ID: 6754625
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6754625
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可