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Posts tagged Lake Michigan

Climate Change Issues for Lake Michigan, USA

43.4N 87.2W

May 18th, 2013 Category: Climate Change, Lakes

USA – May 16th, 2013

Lake Michigan (left) is faced with climate change issues. First and foremost, there is concern over changing temperature and precipitation. This may cause lack of ice cover in winter and more evaporation. Warmer and drier conditions will strain water resources throughout NE Illinois. The majority of scenarios projected by scientists show a drop in lake levels.

Climate Change and Less Ice Cover on Great Lakes, USA and Canada

44.7N 87W

April 3rd, 2013 Category: Climate Change, Lakes

USA – April 2nd, 2013

As the northern hemisphere spring begins, sediments can be seen in Lake Erie (bottom right) and along the southern shores of Lake Michiagan (left). Some ice can be seen in Green Bay (upper left), an arm of Lake Michigan located along the south coast of Michigan’s Upper Peninsula and the east coast of Wisconsin, and in North Channel (top), the body of water along the north shore of Lake Huron, in the Canadian province of Ontario. It stretches approximately 160 nautical miles and is bordered on the east by Georgian Bay (upper right).

Analysts say less ice cover is leading to erosion of Great Lakes shoreline. Whether you believe in global warming or not, changes are happening in the Great Lakes at all times of the year. The Lake Huron Centre for Coastal Conservation says climate change is behind a lack of ice cover on Lake Huron and Georgian Bay, and that this is part of a long-term trend that first became noticeable in the early 1970s. Researchers say we’re seeing 71 per cent less ice in the Lakes than we did in 1973.

The lack of ice permits heavy wave action that contributes to beach and other shoreline erosion, since the heaviest wave action on the Lakes takes place during the winter months. The reduced ice cover allows the water to absorb sunlight instead of reflecting it back to the atmosphere. The absorption prevents ice from forming as the water becomes warmer (click here for more information).

Sediments in Lake Michigan by Chicago, USA – November 29th, 2012

41.8N 87.6W

November 29th, 2012 Category: Image of the day, Lakes, Sediments

USA – November 28th, 2012

Lake Michigan is the only one of the Great Lakes wholly within the borders of the United States; the others are shared with Canada. Twelve million people live along its shores, mainly in the Chicago and Milwaukee metropolitan areas. Here, Chicago appears as a grey area on the southwestern shoreline. Sediments line the southern shores and can be seen by Chicago.

Lake Michigan has a surface area of 22,400 square miles (58,000 km2), making it the largest lake entirely within one country by surface area, and the fifth largest lake in the world.

Although only the southern half is visible here, the lake is 307 miles (494 km) long by 118 miles (190 km) wide with a shoreline 1,640 miles (2,640 km) long. The lake’s average depth is 46 fathoms 3 feet (279 ft; 85 m), while its greatest depth is 153 fathoms 5 feet (923 ft; 281 m). It contains a volume of 1,180 cubic miles (4,918 km³) of water.

Sediments in the Great Lakes of North America

41.8N 87.6W

November 17th, 2012 Category: Lakes

USA – November 16th, 2012

Sediments and phytoplankton create swirled patterns in three of the five Great Lakes of North America. Lake Michigan (left), shows bright blue paisley patterns in the southern half, particularly near the city of Chicago, USA. Lake Huron (center), also shows sediments and phytoplankton along its southern shores. Lake Erie (lower right quadrant), shows sediments of a more green and gold hue, and distributed throughout most of its waters. Lakes Superior (upper left quadrant) and Ontario (right edge), however, appear mostly clear.

Smoke Over Lake Manitoba, Canada

50.6N 98.3W

September 13th, 2012 Category: Clouds, Fires, Lakes

Canada and USA – August 29th, 2012

Smoke from wildfires in Canada creates a thick cloud in the upper left corner of this image, covering Lake Manitoba. The smoke blows in a southeasterly direction, towards Lake Superior (right center) and Lake Michigan (right edge, below the former). A few contrails from passing airplanes can be observed cutting through the cloud of smoke.

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