Vorticity advection: Difference between revisions
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<div class="definition"><div class="short_definition">[[Advection]] of [[vorticity]] by the total [[wind]]: <div class="display-formula"><blockquote>[[File:ams2001glos-Ve20.gif|link=|center|ams2001glos-Ve20]]</blockquote></div> where '''v''' is the total [[wind vector]], '''∇'''<sub>''p''</sub> is the [[del operator]] on an [[isobaric surface]], ζ is the [[relative vorticity]], and ''f'' is the planetary vorticity (the [[Coriolis parameter]]).</div><br/> <div class="paragraph">Vorticity advection is one [[parameter]] used in the [[prediction]] of vertical motion in the [[atmosphere]]: Positive vorticity advection corresponds to rising motion, and negative vorticity advection corresponds to sinking motion (<br/>''see'' [[omega equation]]). Synoptically, the 500-mb level is used to evaluate vorticity advection since it is close to the [[level of nondivergence]] in the atmosphere where vorticity is approximately conserved.</div><br/> </div> | <div class="definition"><div class="short_definition">[[advection|Advection]] of [[vorticity]] by the total [[wind]]: <div class="display-formula"><blockquote>[[File:ams2001glos-Ve20.gif|link=|center|ams2001glos-Ve20]]</blockquote></div> where '''v''' is the total [[wind vector]], '''∇'''<sub>''p''</sub> is the [[del operator]] on an [[isobaric surface]], ζ is the [[relative vorticity|relative vorticity]], and ''f'' is the planetary vorticity (the [[Coriolis parameter]]).</div><br/> <div class="paragraph">Vorticity advection is one [[parameter]] used in the [[prediction]] of vertical motion in the [[atmosphere]]: Positive vorticity advection corresponds to rising motion, and negative vorticity advection corresponds to sinking motion (<br/>''see'' [[omega equation]]). Synoptically, the 500-mb level is used to evaluate vorticity advection since it is close to the [[level of nondivergence]] in the atmosphere where vorticity is approximately conserved.</div><br/> </div> | ||
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Latest revision as of 17:13, 25 April 2012
vorticity advection[edit | edit source]
Advection of vorticity by the total wind: where v is the total wind vector, ∇p is the del operator on an isobaric surface, ζ is the relative vorticity, and f is the planetary vorticity (the Coriolis parameter).
Vorticity advection is one parameter used in the prediction of vertical motion in the atmosphere: Positive vorticity advection corresponds to rising motion, and negative vorticity advection corresponds to sinking motion (
see omega equation). Synoptically, the 500-mb level is used to evaluate vorticity advection since it is close to the level of nondivergence in the atmosphere where vorticity is approximately conserved.
see omega equation). Synoptically, the 500-mb level is used to evaluate vorticity advection since it is close to the level of nondivergence in the atmosphere where vorticity is approximately conserved.
