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Composition of our air/atmosphere Layers of the atmosphere Pressure/density differences CONVECTION CURRENTS . Beginning with the SUN an Energy Budge t is created Earth receives shortwave radiation Absorbed, reflected, or scattered Earth then reflects/scatters back radiation to space
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Composition of our air/atmosphere • Layers of the atmosphere • Pressure/density differences CONVECTION CURRENTS
Beginning with the SUN an Energy Budget is created • Earth receives shortwave radiation • Absorbed, reflected, or scattered • Earth then reflects/scatters back radiation to space • OR the absorbs the heat • Which is then reflected back as longwave radiation • OR used for life processes
4. Greenhouse Effect • Greenhouse gases: CO2, CH4, H20, O3, CFC’s, NO’s Warms planet like a blanket
5. Ozone Layer • Made of O3 • Stratosphere – protects us from UV rays • Troposphere – harmful to breathe
Due to • An uneven heating of Earth’s surface (land vs. water vs. ice amt reflected vs. absorbed) • Pressure differences (moving from HIGH to LOW) ALL of that CONVECTION CURRENTS
6. Atmospheric circulation (moving from H L) Starting with the Coriolis Effect Circulation in the atmosphere is effected by the tilt of the axis.
7. Global winds • Trade winds • Westerlies • Polar Easterlies • Doldrums/Horse Lat’s (zones of H/L pressure) • Convections cells = Hadley Cells, Mid-latitude Cells Jet Streams and Local Winds