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Standing wave
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=== Seiches === A [[seiche]] is an example of a standing wave in an enclosed body of water. It is characterised by the oscillatory behaviour of the water level at either end of the body and typically has a nodal point near the middle of the body where very little change in water level is observed. It should be distinguished from a simple [[storm surge]] where no oscillation is present. In sizeable lakes, the period of such oscillations may be between minutes and hours, for example [[Lake Geneva]]'s longitudinal period is 73 minutes and its transversal seiche has a period of around 10 minutes,<ref>{{Citation|last=Lemmin|first=Ulrich|chapter=Surface Seiches|date=2012|encyclopedia=Encyclopedia of Lakes and Reservoirs|pages=751β753|editor-last=Bengtsson|editor-first=Lars|publisher=Springer Netherlands|language=en|doi=10.1007/978-1-4020-4410-6_226|isbn=978-1-4020-4410-6|editor2-last=Herschy|editor2-first=Reginald W.|editor3-last=Fairbridge|editor3-first=Rhodes W.|series=Encyclopedia of Earth Sciences Series}}</ref> while Lake Huron can be seen to have resonances with periods between 1 and 2 hours.<ref>{{cite web|url=http://www.glerl.noaa.gov/seagrant/glwlphotos/Seiche/13July1995/13July1995Storm.html|title=Lake Huron Storm Surge July 13, 1995 |publisher=NOAA |access-date=2023-01-01 |archive-date=2008-09-16 |archive-url=https://web.archive.org/web/20080916230039/http://www.glerl.noaa.gov/seagrant/glwlphotos/Seiche/13July1995/13July1995Storm.html |url-status=dead}}</ref> See [[seiche#Lake seiches|Lake seiches]].<ref name="2000-02--umn">{{cite web |first=Ben |last=Korgen |url=http://www.seagrant.umn.edu/newsletter/2000/02/bonanza_for_lake_superior_seiches_do_more_than_move_water.html |title=Bonanza for Lake Superior: Seiches Do More Than Move Water |publisher=[[University of Minnesota Duluth]] |website=seagrant.umn.edu |date=February 2000 |archive-url=https://web.archive.org/web/20071227044356/http://www.seagrant.umn.edu/newsletter/2000/02/bonanza_for_lake_superior_seiches_do_more_than_move_water.html |archive-date=2007-12-27 |url-status=dead}} </ref><ref>{{cite web |url=https://www.soest.hawaii.edu/GG/ASK/seiche.html |title=Seiche |website=www.soest.hawaii.edu |access-date=2023-01-01 |archive-date=2019-01-26 |archive-url=https://web.archive.org/web/20190126040622/http://www.soest.hawaii.edu/GG/ASK/seiche.html |url-status=live}}</ref><ref>{{cite web |url=https://arstechnica.com/science/2013/06/japanese-earthquake-literally-made-waves-in-norway/ |title=Japanese earthquake literally made waves in Norway |first=Scott K. |last=Johnson |date=30 June 2013 |website=Ars Technica |access-date=2023-01-01 |archive-date=30 July 2022 |archive-url=https://web.archive.org/web/20220730162534/https://arstechnica.com/science/2013/06/japanese-earthquake-literally-made-waves-in-norway/ |url-status=live}}</ref>
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