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Cirrus & Ridges
http://www.weathergraphics.com/forum/viewtopic.php?f=6&t=843
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Author:  mlewis73 [ Wed Dec 28, 2005 7:23 pm ]
Post subject:  Cirrus & Ridges

I'm working on a project for school and seem to have forgotten some Met 101. :oops:

Can someone detail the dynamics involved that create the cirrus we see spilling over ridges? Better yet, can anyone suggest a book that details cirrus formation as it applies to the dynamics associated with synoptic-scale weather systems (i.e., warm fronts, ridges, jet streaks, etc.) Typical threshold values for upward vertical velocity, relative humidity, divergence, etc. would be great to have, too.

Thank you.

Author:  rmaan [ Mon May 15, 2006 2:35 pm ]
Post subject:  Answer - ? :S

I'm not sure if this will help you or not, but if im not mistaken, humidity and temperature would have a significant influence on cirrus formation right? Variations in these elements could easily cause cirrus formation, even at high pressures. Try this article:

http://ams.allenpress.com/amsonline/?request=get-abstract&doi=10.1175%2F1520-0469(1995)052%3C4302:RHATIO%3E2.0.CO%3B2

Hope that helps :S

Arman

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