Rossby parameter: Difference between revisions
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<div class="definition"><div class="short_definition">(''Also called'' Rossby term.) The northward [[variation]] of the [[Coriolis parameter]], arising from the sphericity of the earth.</div><br/> <div class="paragraph">In [[spherical coordinates]], <div class="display-formula"><blockquote>[[File:ams2001glos-Re45.gif|link=|center|ams2001glos-Re45]]</blockquote></div> where Ω is the angular speed of the earth, φ the latitude, ''a'' the mean radius of the earth, and β the Rossby parameter. The Rossby parameter, usually treated as a constant, is of importance dynamically in producing Rossby waves. <br/>''See'' [[Rossby wave]], [[barotropic instability]], [[beta plane]].</div><br/> </div> | <div class="definition"><div class="short_definition">(''Also called'' Rossby term.) The northward [[variation]] of the [[Coriolis parameter]], arising from the sphericity of the earth.</div><br/> <div class="paragraph">In [[spherical coordinates]], <div class="display-formula"><blockquote>[[File:ams2001glos-Re45.gif|link=|center|ams2001glos-Re45]]</blockquote></div> where Ω is the angular speed of the earth, φ the latitude, ''a'' the mean radius of the earth, and β the Rossby parameter. The Rossby parameter, usually treated as a constant, is of importance dynamically in producing Rossby waves. <br/>''See'' [[Rossby wave]], [[barotropic instability]], [[beta-plane|beta plane]].</div><br/> </div> | ||
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Latest revision as of 16:48, 25 April 2012
Rossby parameter
(Also called Rossby term.) The northward variation of the Coriolis parameter, arising from the sphericity of the earth.
In spherical coordinates, where Ω is the angular speed of the earth, φ the latitude, a the mean radius of the earth, and β the Rossby parameter. The Rossby parameter, usually treated as a constant, is of importance dynamically in producing Rossby waves.
See Rossby wave, barotropic instability, beta plane.
See Rossby wave, barotropic instability, beta plane.
