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Saltstraumen : ウィキペディア英語版 | Saltstraumen
Saltstraumen is a small strait with the strongest tidal current in the world. It is located in the municipality of Bodø in Nordland county, Norway. It is located about southeast of the town of Bodø. The narrow channel connects the outer Saltfjorden to the large Skjerstadfjorden between the islands of Straumøya and Knaplundsøya. The Saltstraumen Bridge on Norwegian County Road 17 crosses the Saltstraumen. ==Current== Saltstraumen has the strongest tidal current in the world. Up to of seawater forces its way through a long and wide strait every six hours, with water speeds reaching . Vortices known as whirlpools or maelstroms up to in diameter and in depth are formed when the current is at its strongest. Saltstraumen has existed for about two to three thousand years. Before that, the area was different due to post-glacial rebound. The current is created when the tide tries to fill the Skjerstadfjorden. The height difference between the sea level and the fjord inside can be up to . When the current turns, there is a period when the strait is navigable.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Saltstraumen」の詳細全文を読む
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