Difference between revisions of "Mesojet"

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<div class="definition"><div class="short_definition">A [[mesoscale]] wind maximum.</div><br/> <div class="paragraph">It typically may have an along-flow length [[scale]] of tens to hundreds of kilometers and a cross-  flow length scale of &lt; 100 km. Mesojets differ from planetary-scale jets, which can have length  scales of several thousand kilometers, and synoptic-scale jets, which may have length scales of 1000&ndash;  2000 km and are commonly found in association with progressive synoptic-scale [[troughs]] and  [[ridges]]. Larger mesojets may also sometimes be known as [[jet streaks]]. Mesojets can form adjacent  to prominent [[orographic]] features in association with terrain-channeled flow. Mesojets are also  seen in association with organized [[mesocale convective systems]] as typified by the evaporatively  driven [[rear-inflow jet]] commonly found behind active [[squall lines]] lines. Mesojets may also be  found in conjunction with prominent lower-tropospheric stable layers where the airflow can become  decoupled from the [[planetary boundary layer]], especially at night. An exceptionally well organized  lower-tropospheric mesojet extending over hundreds of kilometers might be known as a [[low-level  jet]].</div><br/> </div>
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<div class="definition"><div class="short_definition">A [[mesoscale]] wind maximum.</div><br/> <div class="paragraph">It typically may have an along-flow length [[scale]] of tens to hundreds of kilometers and a cross-  flow length scale of &lt; 100 km. Mesojets differ from planetary-scale jets, which can have length  scales of several thousand kilometers, and synoptic-scale jets, which may have length scales of 1000&ndash;  2000 km and are commonly found in association with progressive synoptic-scale [[troughs]] and  [[ridges]]. Larger mesojets may also sometimes be known as [[jet streaks]]. Mesojets can form adjacent  to prominent [[orographic]] features in association with terrain-channeled flow. Mesojets are also  seen in association with organized [[mesoscale convective system|mesocale convective systems]] as typified by the evaporatively  driven [[rear-inflow jet]] commonly found behind active [[squall lines]] lines. Mesojets may also be  found in conjunction with prominent lower-tropospheric stable layers where the airflow can become  decoupled from the [[planetary boundary layer]], especially at night. An exceptionally well organized  lower-tropospheric mesojet extending over hundreds of kilometers might be known as a [[low-level jet|low-level  jet]].</div><br/> </div>
 
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Latest revision as of 17:24, 25 April 2012



mesojet

A mesoscale wind maximum.

It typically may have an along-flow length scale of tens to hundreds of kilometers and a cross- flow length scale of < 100 km. Mesojets differ from planetary-scale jets, which can have length scales of several thousand kilometers, and synoptic-scale jets, which may have length scales of 1000– 2000 km and are commonly found in association with progressive synoptic-scale troughs and ridges. Larger mesojets may also sometimes be known as jet streaks. Mesojets can form adjacent to prominent orographic features in association with terrain-channeled flow. Mesojets are also seen in association with organized mesocale convective systems as typified by the evaporatively driven rear-inflow jet commonly found behind active squall lines lines. Mesojets may also be found in conjunction with prominent lower-tropospheric stable layers where the airflow can become decoupled from the planetary boundary layer, especially at night. An exceptionally well organized lower-tropospheric mesojet extending over hundreds of kilometers might be known as a low-level jet.


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