met1026 - Meteorology 4/8/2008 1:09:00 AM atmospheric...

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Meteorology 08/04/2008 01:09:00 atmospheric circulation [continued] boundary that separates warm and cold air at[around] 60˚N: polar front o these sorts of boundaries fluctuate all of the time, which can draw  warm air extremely far north, and cold air very far to the south.  [zonal  flow] ITCZ—intertropical convergence zone [convergence at equator-ish  region]; this spends 6 months in both hemispheres depending on time of  year [because planet is tilted]; linked to hurricane formation el niño/la niña el nino formation: warm surface air transported by surface winds away; colder  water[because of colder surface].  el nino is when warm air covers all of the  tropical area of the pacific ocean.  [ocean level rises and pressure fluctuations  occur.] la nina is the opposite of el nino. irregular cycle—happens every 2-7 years. Jet stream breaks in tropopause, where layers of it overlap.  this causes strong winds, 
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met1026 - Meteorology 4/8/2008 1:09:00 AM atmospheric...

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