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 Post subject: Cirrus & Ridges
PostPosted: Wed Dec 28, 2005 7:23 pm 
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Joined: Sat Jan 08, 2005 9:53 pm
Posts: 7
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.


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 Post subject: Answer - ? :S
PostPosted: Mon May 15, 2006 2:35 pm 
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Joined: Wed Jul 27, 2005 1:13 pm
Posts: 41
Location: Dubai, United Arab Emirates
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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