Difference between revisions of "Buoyancy length scale"

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<div class="definition"><div class="short_definition">A measure of the suppression of vertical turbulent motions by [[statically  stable]] air.</div><br/> <div class="paragraph">Defined as:    <div class="display-formula"><blockquote>[[File:ams2001glos-Be27.gif|link=|center|ams2001glos-Be27]]</blockquote></div>    where &#x003c3;<sub>''w''</sub> is the [[standard deviation]] of [[vertical velocity]], and ''N'' is the [[Brunt&ndash;V&auml;is&auml;l&auml; frequency]].  It is a useful length [[scale]] for the [[stable boundary layer]].</div><br/> </div>
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<div class="definition"><div class="short_definition">A measure of the suppression of vertical turbulent motions by [[static stability|statically  stable]] air.</div><br/> <div class="paragraph">Defined as:    <div class="display-formula"><blockquote>[[File:ams2001glos-Be27.gif|link=|center|ams2001glos-Be27]]</blockquote></div>    where &#x003c3;<sub>''w''</sub> is the [[standard deviation]] of [[vertical velocity]], and ''N'' is the [[Brunt&ndash;V&#x000e4;is&#x000e4;l&#x000e4; frequency]].  It is a useful length [[scale]] for the [[stable boundary layer]].</div><br/> </div>
 
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Latest revision as of 16:32, 25 April 2012



buoyancy length scale

A measure of the suppression of vertical turbulent motions by statically stable air.

Defined as:
ams2001glos-Be27
where σw is the standard deviation of vertical velocity, and N is the Brunt–Väisälä frequency. It is a useful length scale for the stable boundary layer.


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