Lecture+8+outline

Lecture+8+outline - and sink at the poles. Coriolis effect...

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Lecture 8: Atmospheric Circulation I Review of Lecture 7
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Vostok Ice core of Atmospheric CO 2 How do temperature records compare? How will these changes influence organisms (both land and sea)?
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Atmospheric Circulation Why are we interested in the atmosphere? Weather Climate : Properties of the Atmosphere Air behaves slightly differently than what we have learned about ocean water:
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Structure of the atmosphere The atmosphere is composed of layers: Mesosphere Ozone Layer Stratosphere Tropopause Troposphere
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The Ozone Hole
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Remember the Earth’s Heat Budget? Solar heating varies with latitude Solar heating varies with seasons The earth orbits around the sun tilted at 23.5 degrees.
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Coriolis Effect In a simple, non-rotating earth, heat would simply rise at the equator
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Unformatted text preview: and sink at the poles. Coriolis effect A few examples: Remember: Coriolis appears to deflect objects To the right in the N. Hemisphere To the left in the S. Hemisphere Atmospheric circulation cells Wind patterns Doldrums: Horse Latitudes: Trade winds: Westerlies: Why do the winds blow this way? A HIGH pressure system A LOW pressure system Jet Stream Intertropical Covergence Zone (ITCZ) How does this system impact our weather? Remember that regions of HIGH pressure are associated with air pushing down. Regions of LOW pressure are associated with clouds and precipitation Storms, big and small Storms Tropical cyclones Extratropical cyclones...
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Lecture+8+outline - and sink at the poles. Coriolis effect...

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