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Posts tagged Melville Island

Sediments Around Melville Island, Australia

11.5S 131.1E

August 22nd, 2011 Category: Sediments

Australia - August 12th, 2011

Greenish sediments color Van Diemen Gulf, a body of water between Arnhem Land and Melville Island, in Australia. These sediments come from rivers such as the South Alligator, the East Alligator and the Adelaide Rivers. Sediments can also be seen framing Melville Island.

Moving down the coast to the southwest, one comes to the Joseph Bonaparte Gulf. Although they appear greenish as the diffuse into the ocean, in the innermost parts of the gulf the sediments are quite dense and brown in color.

Sediments in Van Diemen Gulf Near Melville Island, Australia

11.5S 131.1E

November 26th, 2010 Category: Rivers, Sediments

Australia - November 9th, 2010

Sediments create tan and green streaks in the Van Diemen Gulf, a gulf between Arnhem Land, of the attached Cobourg Peninsula, and Melville Island in northern Australia. The sediments are being released into the gulf from the South Alligator River, the East Alligator River and the Adelaide River.

The gulf is connected to the Timor Sea in the west by the Clarence Strait (near the city of Darwin), and to the Arafura Sea in the north by Dundas Strait (between Melville Island and Cobourg Peninsula). It stretches over an area of about 14,000 km².

Coastal Region of Northern Australia as Seen by FAPAR

11.5S 131.1E

December 1st, 2009 Category: Climate Change, Lakes

Australia - November 18th, 2009

Australia - November 18th, 2009

Despite its rather arid interior zones, the coast of Australia’s Northern Territory shows a higher vegetation index in this FAPAR image. FAPAR, or Fraction of Absorbed Photosynthetically Active Radiation, corresponds to the vegetation index of a given area.

In FAPAR images, the color spectrum over land runs from red (1.0), to green, to yellow and white (0.0), while bodies of water,  such as Lake Argyle (left), appear blue.

This image contains no areas of high photosynthetic activity, although the green areas along the coast and on Melville Island (above) indicate mid-range values. Moving southward towards Australia’s arid interior, the values decrease from 0.2 (yellow) to 0.0 (white), indicating little to no photosynthetic activity.

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.

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