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EARTHSC 2GG3 (199)
Lecture 19

Lecture 19.pdf

4 Pages
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Department
Earth Sciences
Course Code
EARTHSC 2GG3
Professor
Sergei Basik

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Description
Severe Weather Winter Hazards Lecture 19 October 18 2013 1 Wind ChillChill that results from a specific combination of wind speed and air temperature expressed by the loss of body heat in watts per square metre of skin Cold temperatures snow and ice and wind can lead to frostbite or hypothermiaWind chill warning issued to warn of conditions that will cause frostbite to exposed skin Criteria vary across the country ranging from wind chill values of 55 in some Arctic regions to 30 in Southwestern OntarioKugaaruk Nunavut January 13 1975a wind chill of 78 C 51 C and 57 kmhGraph The graph shows that if the temperature is 10 degrees and the wind speed 10 kmh there is little added effect butIf the temperature is 10 and the wind 45 kmh the air temperature is equivalent to 25Artwork by Michael Lee Courtesy of The Canadian Encyclopedia 2 LakeOceanEffect SnowAreas downwind of lakes have lakeeffect snow unusually high snowfalls
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