Southwest corner of Western Australia

Southwest corner of Western Australia

:"This article is about the drainage division; :*"For the governmental region, see South West:*"For the ecoregion, see Southwest Australia"

The south-west corner drainage region of Western Australia is one of only two temperate and relatively fertile parts of mainland Australia. It covers about 140,000 square kilometres, or a little less than 2% of the continent. For comparison, this is about the same size as North Carolina or a little larger than England.

The landscape is generally flat and sandy but there are several major features, in particular the Stirling Range near Albany, which reach 1096 metres at their highest point, and the Darling Scarp.

The climate is temperate Mediterranean. Summers are warm to hot and dry, winters are cool and wet. Mountains near the coast concentrate rainfall in that area, with parts of the extreme south-western corner receiving as much as 1,400 mm per year (about 56 inches). Away from the coast, however, precipitation drops rapidly, with inland areas averaging about 250 mm per year (10 inches).

ee also - drainage divisions

Western Australian drainage divisions include:-
* Indian Ocean drainage division: see Pilbara region of Western Australia
* Timor Sea drainage division: see Top End and Kimberley region of Western Australia

Other Australian drainage divisions include:-
* Gulf of Carpentaria
* Australian north-east coast drainage division
* Australian south-east coast drainage division
* Murray-Darling Basin
* South Australian gulf drainage division
* Lake Eyre Basin
* Western Plateau

ee also - river catchments

* List of watercourses in Western Australia
* List of rivers of Australia

References

* Beard, J. S. (1999) "Evolution of the river systems of the south-west drainage division, Western Australia." Journal of the Royal Society of Western Australia, Dec. 1999, p. 147-164'
* Olsen, Graeme. and Skitmore, E. "The state of the rivers of the South West Drainage Division" Leederville, W.A : Western Australian Water Resources Council, 1991. Water resource perspectives Publication ; no. 2/91 ISBN 0730937275
* Schofiled, N.J. et al ( 1989) "Vegetation strategies to reduce stream salinities of water resource catchments in southwest Western Australia : prepared for the Steering Committee for Research on Land Use and Water Supply" Leederville, W.A : Water Authority of Western Australia . Report (Water Authority of Western Australia) ; no. WS 33. ISBN 0730917746
* South West Catchments Council "South West regional strategy for natural resource management" Bunbury, W.A.: South West Catchments Council ISBN 0975729705


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