Geography 2011A/B Lecture Notes - Lecture 5: Great Lakes Basin, Lake Erie Basin, Lake Superior

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Geography 2011
Introduction to the Great Lakes:
Water and the Great Lakes
Water
o In Canada, water is very common
o Lose sight of its value
o Common Property
o Value land much more than water
o Ignore water- except floods or drought
Great Lakes
Great Lake = Lake over 500 Km2
250 Great Lakes World Wide
1/3 in Canada
Laurentian Great Lakes
o Huron
o Ontario
o Michigan
o Erie
o Superior
Characteristics of the Great Lakes Basin
Watershed:
o 295, 000 Square Miles
o 764, 051 Square Kilometers
Shoreline
12, 100 Miles (20, 207 km)
8, 850 miles in Ontario and Quebec
5, 270 miles in 8 US States
Drainage
o Lake Superior and Lake Michigan, east through Lake Huron, Lake St. Clair, Lake
Ontario, to the St. Lawrence and Atlantic Ocean
The Great Lakes:
o Contain 23, 000 km3 of Water
o Area of 244, 000 km2
o Largest system of fresh, surface water on earth
o 18% of world’s fresh water supply
Outflows
o Less than 1% per year- therefore, pollutants that enter the system are retained
in the system
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