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| | | #REDIRECT [[Inertio-gravity wave]] |
| #REDIRECT [[inertio-gravity wave]] | |
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| == inertio-gravity wave ==
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| <div class="definition"><div class="short_definition">An [[internal gravity wave]] propagating under the influence of both [[buoyancy]] and [[Coriolis forces]].</div><br/> <div class="paragraph">The [[dispersion relation]] is given by [[frequency]] <div class="display-formula"><blockquote>[[File:ams2001glos-Ie9.gif|link=|center|ams2001glos-Ie9]]</blockquote></div> in which ''N'' is the [[buoyancy frequency]], ''f'' is the [[Coriolis parameter]], and ''k''<sub>''h''</sub> and ''k''<sub>''v''</sub> are the horizontal and vertical components, respectively, of the [[wavenumber]] vector '''k'''. For all wave-numbers, inertio-gravity waves have frequency smaller than ''N'' and greater than ''f''. 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. For an upward propagating inertio-gravity wave in the Northern Hemisphere, the [[perturbation]] wind [[vector]] turns anticyclonically with height.</div><br/> </div>
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| [[Category:Terms_I]]
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