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Posts tagged Southern Ocean

The Tarkine Wilderness in Tasmania, Australia – November 5th, 2009

40.8S 144.8E

November 5th, 2009 Category: Image of the day

Australia - October 6th, 2009

Australia - October 6th, 2009

Tasmania is an Australian island and state. It is located 240 kilometres (150 mi) south of the eastern side of the continent, from which it is separated by the Bass Strait. The state includes the island of Tasmania – the 26th largest island in the world – and the surrounding islands.

Visible here is the Tarkine, a large wilderness area in the far north-west of Tasmania. It is the largest remaining temperate rainforest area in Australia and one of the largest in the world.

The exact demarcation of this area has yet to be finalized but is bounded roughly by the Southern Ocean to the West, the Arthur River to the north, the Pieman River to the south, and the Murchison Highway to the east. This wilderness covers approximately 3,800 km².

The Tarkine contains pristine rainforest about 1,800 km² and eucalypt forest about 400 km², a number of wild rivers, exposed mountains, magnesite cave systems and extensive coastal heathlands. There are also large sand dune areas extending several kilometres inland.

Icy Shoreline of Eastern Weddell Sea, Antarctica

76.1S 28.8W

August 23rd, 2009 Category: Snapshots

Antarctica - June 30th, 2009

Antarctica - June 30th, 2009

This area of Antarctica is found along the coast of the eastern part of the Weddell Sea, which is part of the Southern Ocean. Its land boundaries are defined by the bay formed from the coasts of Coats Land and the Antarctic Peninsula. Much of the southern part of the sea, up to Elephant Island, is permanent ice, the Filchner-Ronne Ice Shelf.

The sea is contained within the two overlapping Antarctic territorial claims of Argentina and Britain, and also resides partially within the territorial claim of Chile. At its widest the sea is around 2,000 km across, in area it is around 2.8 million km².

Lake Alexandrina and Adelaide, Australia – March 24th, 2009

March 24th, 2009 Category: Image of the day, Lakes

Lake Alexandrina and Adelaide, Australia - March 20th, 2009

Lake Alexandrina and Adelaide, Australia - March 20th, 2009

Lake Alexandrina is a lake in the state of South Australia, Australia, adjacent to the coast of the Southern Ocean, about 100 kilometres south-east of Adelaide (visible as a light grey area on the coast). Easily identifiable from its bright green color, the lake is north of Encounter Bay and east of Fleurieu Peninsula.

The major river flowing into Lake Alexandrina is the Murray River; others include the Bremer, Angas, and Finniss Rivers, all from the eastern side of the southern Mount Lofty Ranges. A narrow channel connects Lake Alexandrina to the smaller Lake Albert to the south-east.

Lake Alexandrina, which is shallow and contains a number of islands near the southern end, empties into the sea near Goolwa (the channel is known as the Murray Mouth). However, when the river flow is low the entrance is often blocked by a sand-bar.

Originally subjected to tidal and storm inflows of seawater the lake is now maintained as fresh water by a series of barrages across the islands near the Murray Mouth. This has produced an annual requirement for more than 1 million megalitres of fresh water to replace losses from evaporation that once came from sea water.