Chapter 6.1

Chapter 6.1 - Chapter 6.1 Atmospheric Patterns of Motion...

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Chapter 6.1 Atmospheric Patterns of Motion I.a. Warmer, less-dense air along equator rises--> low pressure I.a. Colder, more-dense air at poles sinks--> high pressure I.b. If Earth didn't rotate, wind would simply flow from poles to equator (meridional flow) caused only by the pressure gradient I.a. Primary High-Pressure and Low-Pressure Areas I.a.i. 4 Broad Pressure Areas that Cover the Northern Hemisphere (with a similar set in the Southern Hemisphere) I.a.i.1. Equatorial Low-Pressure Trough (ITCZ on maps) : warm and rainy I.a.i.1.a. Constant high sun altitude and consistent, 12-hour daylength--> a lot of energy available in region along the equator I.a.i.1.a. Warming--> lighter, less-dense, ascending air that converges--> air that's moist and full of latent heat energy that rises--> air expands and cools--> condensation, cloudiness--> heavy rainfall I.a.i.1.a. Trade Winds : winds converging on the equatorial low-pressure trough I.a.i.1.a.i. Northern Hemisphere: Northeast trade winds, Southern Hemisphere: Southeast Trade Winds
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Chapter 6.1 - Chapter 6.1 Atmospheric Patterns of Motion...

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