Difference between revisions of "Mesoscale"

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<div class="definition"><div class="short_definition">Pertaining to atmospheric phenomena having horizontal scales ranging from a few to  several hundred kilometers, including [[thunderstorms]], [[squall lines]], [[fronts]], [[precipitation bands]]  in [[tropical]] and [[extratropical cyclones]], and topographically generated weather systems such as  [[mountain waves]] and [[sea]] and [[land breezes]].</div><br/> <div class="paragraph">From a dynamical perspective, this term pertains to processes with timescales ranging from the  inverse of the [[Brunt&ndash;V&auml;is&auml;l&auml; frequency]] to a [[pendulum day]], encompassing deep [[moist convection]]  and the full [[spectrum]] of [[inertio-gravity waves]] but stopping short of [[synoptic-scale]] phenomena,  which have [[Rossby numbers]] less than 1.</div><br/> </div>
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<div class="definition"><div class="short_definition">Pertaining to atmospheric phenomena having horizontal scales ranging from a few to  several hundred kilometers, including [[thunderstorms]], [[squall lines]], [[fronts]], [[precipitation bands]]  in [[tropical cyclone|tropical]] and [[extratropical cyclones]], and topographically generated weather systems such as  [[mountain waves]] and [[sea breeze|sea]] and [[land breezes]].</div><br/> <div class="paragraph">From a dynamical perspective, this term pertains to processes with timescales ranging from the  inverse of the [[Brunt&ndash;V&#x000e4;is&#x000e4;l&#x000e4; frequency]] to a [[pendulum day]], encompassing deep [[moist convection]]  and the full [[spectrum]] of [[inertio-gravity waves]] but stopping short of [[synoptic scale|synoptic-scale]] phenomena,  which have [[Rossby numbers]] less than 1.</div><br/> </div>
 
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Latest revision as of 17:24, 25 April 2012



mesoscale

Pertaining to atmospheric phenomena having horizontal scales ranging from a few to several hundred kilometers, including thunderstorms, squall lines, fronts, precipitation bands in tropical and extratropical cyclones, and topographically generated weather systems such as mountain waves and sea and land breezes.

From a dynamical perspective, this term pertains to processes with timescales ranging from the inverse of the Brunt–Väisälä frequency to a pendulum day, encompassing deep moist convection and the full spectrum of inertio-gravity waves but stopping short of synoptic-scale phenomena, which have Rossby numbers less than 1.