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Climate Change’s Potential Effects on Lake Ontario and Saint Lawrence River, Canada and USA

43.6N 78.1W

April 7th, 2013 Category: Climate Change, Lakes, Rivers

USA and Canada – April 6th, 2013

Snow dusts the landscape of part of the northeastern USA and Canada, framing the shores of the Saint Lawrence River. The river traverses the Canadian provinces of Quebec and Ontario and forms part of the international boundary between Ontario and New York in the United States. It is the primary drainage conveyor of the Great Lakes Basin, and in this image can be seen connected to Lake Ontario.

In the opinion of some experts, a temperature increase of 2 to 4°C could lower the average flow from Lake Ontario by 24%. Lake Ontario is the major source for the St. Lawrence River, and a decrease in flow of this magnitude could result in a 1-metre drop in water levels in some areas of the St. Lawrence.

Ice Around Akimiski Island in James Bay, Canada

53.1N 81.4W

February 11th, 2013 Category: Rivers

Canada – January 26th, 2013

James Bay, a southeasterly extension of Hudson Bay, in Canada, appears covered in ice in this winter image. The surrounding land and Akimiski Island (near the western shores of the bay), the largest island in the bay and an important coastal wetland and waterfowl habitat, are covered in snow. Several rivers can be seen through the snow, flowing across Ontario and into the bay.

Ottawa, Capital City of Canada, at Confluence of Ottawa and Rideau Rivers

45.4N 75.6W

January 27th, 2012 Category: Rivers

Canada - January 5th, 2012

This APM image shows the city of Ottawa, the capital of Canada. The city centre is located at the confluence of the Ottawa and Rideau Rivers. The Ottawa River forms the entire northern boundary of the city (which appears bright green in this image), which it shares with the province of Quebec’s municipalities of Pontiac and Gatineau.

Here, Gatineau can be seen as an orange area across the Ottawa River, which also forms the border between Ontario and Quebec. The highest point in the Ottawa is 166 m (545 ft) above sea level, while the lowest point in the city is the Ottawa River, at 44m above sea level. Located on a major, yet mostly dormant fault line,[50] Ottawa is occasionally struck by earthquakes.

Confluence of Ottawa and Gatineau Rivers, Canada

45.4N 75.6W

December 13th, 2011 Category: Rivers

Canada - December 11th, 2011

This APM image shows the Ottawa River in the Canadian provinces of Ontario and Quebec. For most of its length, it now defines the border between these two provinces. The total length of the river is 1,271 kilometers (790 mi); it drains an area of 146,300 km2, 65% in Quebec and the rest in Ontario, with a mean discharge of 1,950 m3/s.

The river rises from its source in Lake Capimitchigama, in the Laurentian Mountains of central Quebec, and flows west to Lake Timiskaming, then southeast to Ottawa and Gatineau. Here, it can be seen passing between those two cities in the lower left quadrant. The Gatineau River can also be seen in that part of the image, flowing south to join the Ottawa River at the city of Gatineau, Quebec. From there, the Ottawa River continues its course, draining into the Lake of Two Mountains and the St. Lawrence River at Montreal.


Saint Lawrence and Saguenay Rivers, Canada – December 7th, 2011

48.1N 69.7W

December 7th, 2011 Category: Rivers, Sediments

Canada - November 22nd, 2011

Two rivers can be seen flowing into the Gulf of Saint Lawrence, one of the largest estuaries in the world, in this image of Canada: the Saint Lawrence River, entering the gulf from the left edge, and the Saguenay River, also entering the gulf from the west in the upper left quadrant.

The Saint Lawrence is a large river flowing approximately from southwest to northeast in the middle latitudes of North America, connecting the Great Lakes with the Atlantic Ocean. The river traverses the Canadian provinces of Quebec and Ontario and forms part of the international boundary between Ontario and New York in the United States. Here, it can be seen releasing tan sediments into the gulf.

The Saguenay River is a major river of Quebec, Canada. It drains Lac Saint-Jean in the Laurentian Highlands, leaving at Alma and running east, and passes the city of Saguenay. It drains into the Saint Lawrence River at Tadoussac. Although the river has a very high flow-rate, no sediments can be seen flowing from it into the gulf. This may be due to the fact that tide waters flow in its fjord upriver as far as Chicoutimi (about 100 kilometres).