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Posts tagged Lake Erie

Sediments in Lake Erie, USA

42.0N 81.3W

April 23rd, 2013 Category: Lakes, Mountains

USA – April 22nd, 2013

Sediments give the waters of Lake Erie a greenish tinge, in comparison to the deeper blue of the other North American Great Lakes. Despite some cloud cover, the outline of the northern section of Lake Michigan is visible due to superimposed borders recreated in the satellite imagery. Visible further south are the ridges of the Appalachian Mountains, which stretch from the southern USA to the northeastern part of the country.

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 Erie, USA – February 7th, 2013

42.0N 81.3W

February 7th, 2013 Category: Image of the day, Lakes

USA – January 24th, 2013

While the shores of Lake Erie are mostly surrounded by bright white snow and some cloud cover, the lake’s waters are bright shades of gold, green and blue due to the presence of sediments.  Since Lake Erie is the most shallow of the Great Lakes, the exchange of sediments, as well as contaminants, may affect it more greatly than the other Great Lakes.

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.

Swirls of Sediments in Lake Erie, USA

42.0N 81.3W

April 19th, 2012 Category: Lakes, Sediments

USA - April 12th, 2012

While Lakes Superior, Michigan and Huron (left to right) appear mostly sediment free, with the exception of some greenish sediments framing Lake Michigan’s southern shoreline, Lake Erie offers a lively display of colors. The lake shows swirls of golden, green and blue sediments, and is framed by dotted white popcorn clouds.