Difference between revisions of "Meridional cell"

From Glossary of Meteorology
imported>Perlwikibot
imported>Perlwikibot
 
Line 9: Line 9:
 
   </div>
 
   </div>
  
<div class="definition"><div class="short_definition">A very [[large-scale convection]] circulation in the [[atmosphere]] or ocean that takes  place in a [[meridional]] plane, with northward and southward currents in opposite branches of the  cell, and upward and downward motion in the equatorward and poleward ends of the cell.</div><br/> <div class="paragraph">There are three annual mean meridional cells in each hemisphere, the strongest of which is the  [[Hadley cell]]. A much weaker [[indirect cell]] is the [[Ferrel cell]] located between 30&#x000b0; and 60&#x000b0; latitude.  There is a very weak [[direct cell]] in the polar latitudes. These are integral parts of the [[general  circulation]]. <br/>''Compare'' [[Hadley cell]], [[polar cell]].</div><br/> </div>
+
<div class="definition"><div class="short_definition">A very [[large-scale convection]] circulation in the [[atmosphere]] or ocean that takes  place in a [[meridional]] plane, with northward and southward currents in opposite branches of the  cell, and upward and downward motion in the equatorward and poleward ends of the cell.</div><br/> <div class="paragraph">There are three annual mean meridional cells in each hemisphere, the strongest of which is the  [[Hadley cell]]. A much weaker [[indirect cell]] is the [[Ferrel cell]] located between 30&#x000b0; and 60&#x000b0; latitude.  There is a very weak [[direct cell]] in the polar latitudes. These are integral parts of the [[general circulation|general  circulation]]. <br/>''Compare'' [[Hadley cell]], [[polar cell]].</div><br/> </div>
 
</div>
 
</div>
  

Latest revision as of 17:24, 25 April 2012



meridional cell

A very large-scale convection circulation in the atmosphere or ocean that takes place in a meridional plane, with northward and southward currents in opposite branches of the cell, and upward and downward motion in the equatorward and poleward ends of the cell.

There are three annual mean meridional cells in each hemisphere, the strongest of which is the Hadley cell. A much weaker indirect cell is the Ferrel cell located between 30° and 60° latitude. There is a very weak direct cell in the polar latitudes. These are integral parts of the general circulation.
Compare Hadley cell, polar cell.


Copyright 2022 American Meteorological Society (AMS). For permission to reuse any portion of this work, please contact permissions@ametsoc.org. Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act (17 U.S. Code § 107) or that satisfies the conditions specified in Section 108 of the U.S.Copyright Act (17 USC § 108) does not require AMS’s permission. Republication, systematic reproduction, posting in electronic form, such as on a website or in a searchable database, or other uses of this material, except as exempted by the above statement, require written permission or a license from AMS. Additional details are provided in the AMS Copyright Policy statement.