Geography of South Australia

Geography of South Australia

South Australia occupies the south central part of the continent of Australia. It is one of the six states of Australia. South Australia is bordered on the west by Western Australia, to the north by the Northern Territory, Queensland to the northeast, and both New South Wales and Victoria to the east. South Australia's south coast is flanked by the Great Australian Bight and the Indian Ocean,Most Australians describe the body of water south of the continent as the Southern Ocean, rather than the Indian Ocean as officially defined by the International Hydrographic Organization (IHO). In 2000, a vote of IHO member nations defined the term "Southern Ocean" as applying only to the waters between Antarctica and 60 degrees south latitude.] although it is referred to locally as the Southern Ocean.

The northern and western parts of the state are extremely arid, in central Australia, dominated by Lake Eyre and Lake Torrens, mostly dry salt lakes. This arid area is sparsely populated, with many large cattle stations, and significant areas protected as national parks, or as Aboriginal lands. The only significant roads through these areas are the Stuart Highway north from Port Augusta to the Northern Territory, the Eyre Highway across the Nullarbor Plain to Western Australia, and the Barrier Highway east to Broken Hill in New South Wales. These highways have corresponding railways: the Trans-Australian Railway going west and east, and the Central Australia Railway going north.

The coastline includes cliffs against the Great Australian Bight and the western side of Eyre Peninsula. The coast is less rugged on Spencer Gulf and Gulf Saint Vincent (separated by Yorke Peninsula), Fleurieu Peninsula, Encounter Bay and The Coorong.

The highest point in the state is Mount Woodroffe at 1,435 metres (4,708 ft) in the Musgrave Ranges in the northwest corner of the state. [cite web |url=http://www.ga.gov.au/education/facts/landforms/highmtns.htm#state |title=Highest Mountains |publisher=Geoscience Australia |accessdate=2007-09-26] The main range is the Mount Lofty Ranges and Flinders Ranges extending approximately convert|800|km|mi|0 from Fleurieu Peninsula along the eastern side of Gulf St Vincent and Spencer Gulf.

The arid north is delineated from the more fertile southeast by Goyder's Line, first surveyed in the 1860s, and which has proven to be a remarkably accurate northern boundary marking where sustainable agriculture can be carried out.

East of the Mount Lofty Ranges, the Murray River flows west from New South Wales and Victoria, then south adjacent to the ranges.

Climate

The state's mean temperature range is 29°C in January and 15°C in July. Daily temperatures in parts of the state in January & February can be up to 48°C.

Highest maximum temperature: 50.7°C (123.3°F), Oodnadatta, 2 January 1960 (The highest official temperature recorded in the whole of Australia).

Lowest minimum temperature: -8.2°C (17.2°F), Yongala, 20 July 1976 [cite web |url=http://members.iinet.net.au/~jacob/worldtp.html |date=2005-10-17 |accessdate=2007-09-26 |title=World temperature extremes]

References


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