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GL / Climate / Precipitation / Snow
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Last updated in September, 2000

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    "Snowflakes are simply aggregates of ice crystals that collect to each other as they fall toward the surface. The diagram below shows a typical temperature profile for snow with the red line indicating the atmosphere's temperature at any given altitude. The vertical line in the center of the diagram is the freezing line. Temperatures to the left of this line are below freezing, while temperatures to the right are above freezing. Since the snowflakes do not pass through a layer of air warm enough to cause them to melt, they remain in tact and reach the ground as snow." (from WW2010 University of Illinois: Snow)
     Lake Effect Snow: When the clouds form, water vapor is condensed into tiny droplets. These droplets are usually found as ice-crystals in a lake-effect storm. Eventually the ice-crystals form into snowflakes. As soon as this occurs, the clouds start to produce heavy snow showers over the lake and downwind of shore. This lake-effect storm can leave behind up to a foot of snow within a few hours (Refer to the conceptual drawing below). (from Syracuse Snow Page)
 
1. What is the lake effect on snowfall in the Great Lakes region?
2. How different is the amount of snow from Western areas of the Great Lakes to Eastern areas, and why?
3. How do people think global warming can affect snowfall in the Great Lakes region?
 
LAKERS (Lake-Aware Kids Engaged in
Relevant Science

EP-079 The Great Lake Erie
EP-083 Earth Systems - Education Activities
 for Great Lakes Schools (ES-EAGLS):
 
Climate and Water Movement
 
 
1. Play with the snowflake face (for kids)

2. The Great Lake Erie

  •  4. The Effect of Lake Erie on Climate
  • 3. Earth Systems - Education Activities for Great Lakes Schools (ES-EAGLS)

    Climate and Water Movement

     How do the Great Lakes affect temperature?
    Order form

     

    ice.jpg (59885 bytes)
     source: Images of Extensive Great Lakes Ice Cover from AVHRR

    snow.gif (4941 bytes)
    source: Lake Effect Snow 

    annual.gif (22237 bytes)
    source: annual snow fall

    1. Remote Sensing of the Great Lakes Cryosphere
    http://www.geo.mtu.edu/great_lakes/ice/

    2. State of the Cryosphere
    http://www-nsidc.colorado.edu/NASA/SOTC/

    3. Lake Effect Snow
    http://web.syr.edu/~wrt405/normal/Lake_Effect.html

    4. Intense temperature contrast fuels thunder
    snow near Great Lakes

    http://www.usatoday.com/weather/wlakeeff.htm

    6. LAKE-EFFECT SNOW: Slide Presentation
    http://www.comet.ucar.edu/class/smfaculty/byrd/

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