Climate zones


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Climate zones

  1. 1. Weather & Climate<br />What is the difference between weather and climate? Or are they the same?<br />Climate is what we expect. <br />Weather is what we get.<br />
  2. 2. Coriolis Effect<br />What is the Coriolis effect? <br />The apparent curve of the winds on earth.<br />
  3. 3. Prevailing Winds<br /><ul><li>Air moving from a high pressure area to low pressure area = wind.
  4. 4. Westerlies:prevailing winds that go from west to east over the United States</li></li></ul><li>
  5. 5. Iceland Volcano Plume<br />What could happen if there are more large eruptions in the near future?<br />The Year Without a Summer 1816: Caused by the 1815 Eruption of Mount Tambora in Indonesia. <br />93 cubic miles of ash into the stratosphere.<br />Many parts of the world had snow in summer, heavy rainfall, crop failures, disease and starvation due to lack of sunlight.<br />
  6. 6. Check your understanding…<br />So why is it important to know the direction winds blow at different latitudes?<br />Sailing (exploration, trading, pirates in the Caribbean)<br />Predict weather conditions<br />
  7. 7. Earth’s surface features affect weather and climate<br /><ul><li>Variations in Earth’s topography affect the climate of a region
  8. 8. Mountains
  9. 9. Plains
  10. 10. Oceans/Great Lakes</li></li></ul><li>Mountains<br />Review <br />Mountains=Rain Shadow Effect<br /><ul><li>Prevailing windscarry moist air up windward side of mountains
  11. 11. Air rises over mountain, cools and condenses (forms clouds). Air loses capacity to hold moisture = precipitation (rain/snow)</li></li></ul><li>Rain shadow…..<br /><ul><li>Leewardsideof mountain-- cool, dry air warms as it descends.
  12. 12. Deserts can form on leeward side of mountain.</li></li></ul><li>
  13. 13. Rocky Mountain Rain Shadow<br />
  14. 14.
  15. 15. Altitude<br />Altitude=Cooler temperatures<br />Snow on mountains near the equator<br />
  16. 16. Oceans and Large Lakes<br />Oceans and Great Lakes<br /><ul><li>Large bodies of water moderate temperature on nearby land
  17. 17. Oceans heat up and cool down SLOWER than land
  18. 18. Ex. San Francisco vs. Nebraska</li></li></ul><li>
  19. 19. Plains<br /><ul><li>Broad and flat
  20. 20. Nothing to stop wind flow
  21. 21. Winds and moisture merge
  22. 22. Mixing of winds create severe thunderstorms and........</li></li></ul><li>Tornadoes!<br />Aurora, CO June 2009<br />
  23. 23. Aurora’s Weather and Climate<br />Use the information you have learned today and your experience with the weather in Aurora to answer the question:<br />“What factors influence the weather and climate we have in Aurora?”<br />Use at least 4 of these words/phrases in your explanation:<br />Rain shadow, plains, leeward, Westerlies, proximity to the ocean, windward, altitude.<br />
  24. 24. Latitude and Climate Zones<br />Latitude: The distance of a place north or south of the equator <br />(remember: latitude=ladder)<br />Equator: 0o = warmest weather all year<br />Temperatures get cooler the further north and south you go<br />
  25. 25. Climate Zone Maps<br />How to correctly color your maps:<br />Leave lakes and oceans UNCOLORED<br />Take time to look at the map when coloring. Can you predict the climate of a region by its terrain, distance from equator or poles, or proximity to water?<br />Use a different color for each climate zone if you can.<br />1. Begin the reading. <br />When you read POLAR ZONES: ICE CAPS, pick your first color and color the word ICE CAPS. Select a new color for TUNDRA and do the same. Read the POLAR ZONES paragraph and then color in the polar zones on the map. (ICE CAP=A and TUNDRA=B)<br />Repeat the same process for each climate zone. <br />