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| | | #REDIRECT: [[Internal gravity wave]] |
| #REDIRECT [[internal gravity wave]] | |
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| == internal gravity wave ==
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| <div class="definition"><div class="short_definition">(''Also called'' internal waves, [[gravity waves]].) A [[wave]] that propagates in [[density]]-stratified fluid under the influence of [[buoyancy]] forces.</div><br/> <div class="paragraph">The [[dispersion relation]] is given by [[frequency]] <div class="display-formula"><blockquote>[[File:ams2001glos-Ie15.gif|link=|center|ams2001glos-Ie15]]</blockquote></div> in which ''N'' is the [[buoyancy frequency]] and ''k''<sub>''h''</sub> is the horizontal component of the [[wavenumber]] vector '''k'''. For all wavenumbers, internal gravity waves have frequency smaller than ''N''. Their [[group velocity]] is perpendicular to the [[phase velocity]] such that the vertical component of the group velocity is opposite in sign to the vertical component of the phase velocity.</div><br/> </div>
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| [[Category:Terms_I]]
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