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Posts tagged Beaufort Sea

Sediments Pour from Mackenzie River into Beaufort Sea, Canada – November 11th, 2010

69.5N 133.3W

November 11th, 2010 Category: Image of the day, Rivers, Sediments

Canada - September 7th, 2010

Brown sediments pour from the mouth of the Mackenzie River into the Beaufort Sea, part of the Arctic Ocean. Multiple braided channels can be seen in the delta area by the mouth. The sediments are darkest brown near the shore, where they are densest, and become lighter tan and then green as they disperse into the sea.

The river, whose mean discharge at the mouth is 10,700 cubic metres per second (380,000 cu ft/s), originates in the Great Slave Lake, in Canada’s Northwest Territories, and flows north. It is the longest river in Canada at 1,738 kilometres (1,080 mi).

Sediments from Mackenzie River, Canada – August 19th, 2010

69.0N 135.9W

August 19th, 2010 Category: Image of the day, Rivers, Sediments

Canada - July 21st, 2010

The Mackenzie River spills a load of dense brown sediments into the Beaufort Sea, part of the Arctic Ocean. Its mean discharge is 10,700 cubic metres per second (380,000 cu ft/s). The Mackenzie and its tributaries drain 1,805,200 square kilometres (697,000 sq mi).

The river originates in the Great Slave Lake, in Canada’s Northwest Territories, and flows north. It is the longest river in Canada at 1,738 kilometres (1,080 mi) and, together with its headstreams the Peace and the Finlay, the second longest river in North America at 4,241 kilometres (2,635 mi) in length.

Colville River Crossing Alaska’s North Slope Borough, USA

70.2N 150.9W

December 29th, 2009 Category: Lakes, Rivers

USA - December 19th, 2009

USA - December 19th, 2009

The landscape of Alaska’s North Slope Borough is dotted by many lakes in this orthorectified image. The borough has a total area of 94,763 square miles (245,436 km²), of which, 88,817 square miles (230,035 km²) of it is land and 5,946 square miles (15,399 km²) of it (6.27%) is water.

Its western coastline is along the Chukchi Sea, while its eastern shores, beyond Point Barrow, are on the Beaufort Sea (visible in the top part of this image). Here, the Colville River can be seen crossing the North Slope and spilling into the Beaufort Sea.

The Colville is a major river of the Arctic Ocean coast of Alaska in the United States, approximately 350 mi (560 km) long. One of the northernmost major rivers in the North America, it drains a remote area of tundra on the north side of the Brooks Range entirely above the Arctic Circle. The river is frozen for more than half the year and floods each spring.

Upon opening the full image, the river can be seen flowing through the foothills on the north side of the Brooks Range, broadening as it receives the inflow of many tributaries that descend from the middle Brooks Range. After flowing across the Arctic plain, it enters the western Beaufort Sea in a broad delta near Nuiqsut, approximately 120 mi (190 km) west of Prudhoe Bay.

Canadian Arctic Archipelago

72.6N 99.4W

August 9th, 2009 Category: Snapshots

Canada - June 29th, 2009

Canada - June 29th, 2009

The Canadian Arctic Archipelago is an archipelago north of the Canadian mainland in the Arctic. Covering about 1,424,500 km2 (550,000 sq mi), this group of 36,563 islands comprises most of the territory of Nunavut and part of that of the Northwest Territories.

The archipelago extends some 2,400 km (1,500 mi) longitudinally and 1,900 km (1,200 mi) from the mainland to Cape Columbia, the northernmost point on Ellesmere Island.

It is bounded on the west by the Beaufort Sea; on the northwest by the Arctic Ocean; on the east by Greenland, Baffin Bay and Davis Strait; and on the south by Hudson Bay and the Canadian mainland.

The various islands are separated from each other and the continental mainland by a series of waterways collectively known as the Northwestern Passages. Here, most of such waterways are covered by ice, which appears to be cracking with the warmer summer temperatures.

Ice on Hazen and McClure Straits, Canada

75.5N 111.8W

June 26th, 2009 Category: Clouds, Snapshots

Canada - June 17th, 2009

Canada - June 17th, 2009

The Hazen Strait (above center) is a natural waterway through the Canadian Arctic Archipelago. It separates Mackenzie King Island in the Northwest Territories (to the north) from Vesey Hamilton Island and Melville Island’s Sabine Peninsula in Nunavut (to the south).

Here, the Hazen Strait appears mostly white, as it is covered by ice, whereas the McClure Strait, to the southwest, appears less frozen. The latter’s waters are mostly dark blue with ice bordering and breaking apart around its islands.

The McClure Strait, on the edge of the Canadian Northwest Territories, forms the northwestern end of one of the routes through the Northwest Passage. The strait connects the Beaufort Sea in the west with Viscount Melville Sound in the east.

Looking carefully at the image, despite the distraction of the white snow and ice below, it is possible to see white clouds in a large, loose vortex whose swirl reaches from the bottom left to the center.