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Large Scale Patterns of Climatic Variations

Large Scale Patterns of Climatic Variations. Amanda Rosenberger. Photo : http://www.funtoosh.com/wall/space/earth_a_3.jpg. Temperature. 23 ½° tilt Seasons in Northern Hemisphere Summer – Earth is tilted toward the sun Winter – Earth is tilted away from the sun

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Large Scale Patterns of Climatic Variations

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  1. Large Scale Patterns of Climatic Variations Amanda Rosenberger Photo : http://www.funtoosh.com/wall/space/earth_a_3.jpg

  2. Temperature • 23 ½° tilt • Seasons in Northern Hemisphere • Summer – Earth is tilted toward the sun • Winter – Earth is tilted away from the sun • Spring and Fall – sun is directly overhead the equator • Higher Latitudes – less light from sun= colder climate

  3. Photo: http://www.windows.ucar.edu/tour/link=/earth/climate/images/seasons_lg_gif_image.html&edu=elem

  4. Atmospheric Circulation • Warm air with moisture rises • Air cools down and moisture is released • Air moves north and south • Air cools more, becomes denser • Cool air sinks back towards surface • Air moves north and south • Air warms up and collects moisture

  5. Atmospheric Circulation • 3 air circulation cells on each side of equator Photo: http://earthguide.ucsd.edu/eoc/middle_school/teachers/earth/sp_atmosphere/p_atmo_circulation_vert1.html

  6. Coriolis Effect • Objects appear to move to the right (Northern Hemisphere) and left (Southern Hemisphere) • Winds are named for the direction they begin at Photo: http://www.csa.com/discoveryguides/prednino/images/winds.gif

  7. Climate Diagrams • Developed by Heinrich Walter in 1985 • Shows patterns of average variation in temperature, precipitation, wet and dry seasons and portions of the year temperatures are above 0°C

  8. Climate Diagrams Photo: Ecology, Concepts and Applications, 5th Edition, Manuel C. Molles Jr., P. 16

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