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Lecture 4

ZOL 355 Lecture Notes - Lecture 4: Mérida, Yucatán, Polar Desert, Mcmurdo Dry ValleysPremium

4 pages36 viewsSpring 2018

Department
Zoology
Course Code
ZOL 355
Professor
P.Ostrom
Lecture
4

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Global Barometric Pressure
Low pressure
o Air rising from surface creates low pressure
o Low pressure is associated with high precipitation and cloud cover
o Wet biomes are associated with global pressure centers
o Area of equatorial low pressure is the Intertropical Convergence
Zone (ITCZ)
Sun heats air at the equator,
the hot air rises, and low
pressure is created
High pressure
o Sinking cold dense air creates high pressure
o Air flow from two Hadley cells comes together and the air sinks,
causing high pressure
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