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Posts tagged Georgian Bay

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).

Lake Huron and Georgian Bay, USA and Canada

45.0N 82.4W

September 6th, 2011 Category: Lakes

USA and Canada - August 15th, 2011

This image focuses on Lake Huron, one of the five Great Lakes of North America, and Georgian Bay (the large bay connected to the lake in the upper part of the image). Sediments can be observed along the southern shores of the lake, although most of the rest of the shoreline of the lake and bay is clear.

Lake Huron is bounded on the east by the Canadian province of Ontario and on the west by the state of Michigan in the United States. It is the second largest of the Great Lakes, with a surface area of 59,596 km2 (23,010 sq mi) making it the third largest fresh water lake on earth. It contains a volume of 3,540 km3 (850 cubic miles), and a shoreline length of 3,827 mi (6,157 km).

Georgian Bay is a large bay of Lake Huron, located in Ontario, Canada. The main body of the bay lies east of the Bruce Peninsula and Manitoulin Island. The Main Channel separates the Bruce Peninsula from Manitoulin Island and connects Georgian Bay to the rest of Lake Huron.

Wildfire North of Lake Huron in Ontario, Canada

46.5N 81W

November 15th, 2009 Category: Fires, Lakes

Canada - November 8th, 2009

Canada - November 8th, 2009

Smoke trails east-northeast from a wildfire burning northwest of the Canadian city of Greater Sudbury, in the province of Ontario, in the upper left quadrant of this image.

Several bodies of water can be seen nearby, the closest of which is Lake Wanapitei, which occupies a meteorite crater near Greater Sudbury. The crater is 5.2 miles (8.37 km) in diameter and the age is estimated to be 37.2 ± 1.2 million years.

East of Lake Wanapitei is the larger Lake Nipissing, with a surface area of 873.3 km2 (337.2 sq mi) and a mean elevation of 196 m (643 ft) above sea level. It is relatively shallow for a large lake, with an average depth of only 4.5 m (14.8 ft). The shallowness of the lake makes for many sandbars along the lake’s irregular coastline.

To the south of both lakes is Georgian Bay, is a large bay of Lake Huron (bottom left quadrant). The main body of the bay lies east of the Bruce Peninsula and south of Manitoulin Island, the largest island in a freshwater lake in the world.  The Main Channel separates the Bruce Peninsula from Manitoulin Island and connects Georgian Bay to the rest of Lake Huron.

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