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Lake Superior's deepest point [4] on the bathymetric map. [1] Lake Superior has a surface area of 31,700 square miles (82,103 km 2), [7] which is approximately the size of South Carolina or Austria. It has a maximum length of 350 statute miles (560 km; 300 nmi) and maximum breadth of 160 statute miles (257 km; 139 nmi). [8]
A map of the Great Lakes Basin showing the five sub-basins. Left to right they are: Superior (magenta); Michigan (cyan); Huron (green); Erie (yellow); Ontario (red). Though the five lakes lie in separate basins, they form a single, naturally interconnected body of fresh water, within the Great Lakes Basin. As a chain of lakes and rivers, they ...
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With Great Lakes water temperatures running 4-6.5 degrees above average, the arctic winds are picking up the warmth and moisture from the waters and transfer it into the lowest portion of the ...
The amount of ice on the Great Lakes — Lake Superior, Lake Michigan, Lake Huron, Lake Erie and Lake Ontario — determines when and how raw materials and cargo can be shipped from Midwest ports.
Isle Royale geologic map Cross-section of the Lake Superior basin showing the tilted strata of volcanic rock that form Isle Royale. The island is composed largely of ridges, running roughly southwest-to-northeast. The main ridge, Greenstone Ridge, is over 1,000 ft (300 m) in many places.
Last summer, Lake Michigan was 10 degrees above normal, which resulted in the water taking longer to cool down in the winter. At the start of the year, only 3% of the Great Lakes were covered in ice.
For lake-effect rain or snow to form, the air moving across the lake must be significantly cooler than the surface air (which is likely to be near the temperature of the water surface). Specifically, the air temperature at an altitude where the air pressure is 850 millibars (85 kPa ) (roughly 1.5 kilometers or 5,000 feet vertically) should be ...