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Climate zones

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Climate zones Climate zones Presentation Transcript

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