GEOL107_11

GEOL107_11 - GEOL 107 L11 9/16/2011 3 SURFACE Seawater...

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GEOL 107 L11 9/16/2011 1 Introduction to Climate: an Ocean Atmosphere system Chapter 6 Sun is the primary source of energy for our planet Planetary Fun: Size of the Sun Sun emits primarily short wavelengths Planetary Energy Balance Amount in (solar) = Amount out (earth) Input, solar radiation (insolation) Primary source of heat energy, the sun short wave radiation Planetary Energy Budget Output, Earth’s radiation heat radiated by Earth long wavelength radiation
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GEOL 107 L11 9/16/2011 2 Uneven Solar Heating acts to reduce the equator to pole temperature gradient Today: atmosphere Next week: ocean circulation Uneven heating results in convection Equator Pole Wind flows from high pressure to low pressure Hadley cell convection subtropical subtropical Intertropical Convergence Zone (ITCZ) Trade Wind Convergence Zone of intense rainfall, storms
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Unformatted text preview: GEOL 107 L11 9/16/2011 3 SURFACE Seawater Density Temperature + Salinity Salinity Temperature Uneven Solar Heating 1 st order control on Atmospheric Circulation Planet’s Rotation & Coriolis Effect 2 nd order control on Atmospheric Circulation Planet’s Rotation • Surface of the earth is travelling at a greater velocity at the equator than at the poles Coriolis Effect • Air carries it’s momentum as it moves N or S • Differs in speed to land underneath! – Deflected R in NH – Deflected L in SH GEOL 107 L11 9/16/2011 4 Coriolis Effect Frame of Reference • From Space – a missile shot from N. Pole to Equator can be seen to move in a straight line • From Earth – the missile appears to be deflected to the right. – Misses target, because the Earth rotates out from under it! General Circulation of the Atmosphere...
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This note was uploaded on 10/11/2011 for the course GEOL 107Lxg at USC.

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GEOL107_11 - GEOL 107 L11 9/16/2011 3 SURFACE Seawater...

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