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Brainstorm Answer
12/04/2002
Listen in RealAudio 
Hi, I'm Bryan Yeaton for The Weather Notebook. Last month, we asked the following questions:
What is the ITCZ, where is it, and what does it have to do with Flannery O'Connor?
We've pieced together the solution:
My name is Dean Bianco and I heard you on North Country Public Radio. I believe the answer for
ITCZ would be Intertropical Convergence Zone. Again, Intertropical Convergence Zone.
Yes, this is Dennis Freeman. The ITCZ is the Intertropical Convergence Zone, The ITCZ
location during June to September is closely related to both cumulative rainfall and crop
production in West Africa. Hey, how's that for an answer?
Hi, this is Tony Raccuglia. The weather in this area is usually unsettled with lots of
clusters of thunderstorms and rising air currents in the atmosphere.
Bryan: This is John Buckley, of Corpus Christi, TX:
The answer to your puzzler question was Intertropical Convergence Zone. It is an equatorial
low area where you are getting Hadley cell circulation. It shifts north and south, depending
on what season of the year it is. It helps drive trade winds, among other stuff. It also, as
the Intertropical Convergence Zone shifts up into the Northern Hemisphere, especially in and
around India, it begins to drive the monsoons.
No one seemed to need our hint, which dealt with a Flannery O'Connor short story. The title:
"Everything That Rises Must Converge." And that's exactly what's happening down at the
ITCZ.
Thanks to everyone who called or wrote. A new Brainstorm is coming up tomorrow.
The Weather Notebook is produced by the Mount Washington Observatory, with funding from Subaru
of America and the National Science Foundation.
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