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| outflow = ''evaporation'' | catchment = | basin_countries = Australia | date-built = | date-flooded = | agency = | length = | width = | area = | depth = | max-depth = | volume = | residence_time = | shore = | elevation = | frozen = | islands = Vaughan Island | cities = | reference = 〔 }} Lake Corangamite, a hypersaline endorheic lake, is located near Colac in the Lakes and Craters region of the Victorian Volcanic Plains of south-west Victoria, Australia. The lake's salinity levels have increased dramatically as the lake level has dropped in recent decades. It is Australia's largest permanent saline lake, covering approximately with a circumference of . It forms part of the Ramsar-listed Western District Lakes wetland site. ==Physical features and hydrology== The waterbody is surrounded to the south and east by rocky outcrops (known locally as the ''stony rises'') which were formed by lava flows from Mount Porndon to the south-west and Mount Warrion to the east. The spectacular 'Red Rocks' maar crater complex overlooks the south west shore. The Mount Warrion flows caused the lake to form by blocking drainage to the east. As is typical of lakes in the area, the eastern flanks of the lake consist of lunettes formed by wind borne sediments blown from the lake during periods with dry climates. Flow into the lake is extremely variable and negligible in the driest years. Currently it is endorheic (there is no outflow) but during the wet decade of the 1950s the lake flooded and became connected via a series of wetlands and lakes to Lake Murdeduke and the Barwon River. It has never been completely dry since European settlement, and there it is evidence it was an open lake for centuries prior to the 1840s when rainfall and runoff were similar to those of the 1950s. The main inflows are from Pirron Yaloak Creek flowing from the Otway plains to the south, the Woady Yaloak River flowing from the flanks of the Victorian Midlands to the north, and Salt Creek flowing from the plains to the north-west. The Pirron Yaloak has high nutrient loads due to dairy farming in its catchment. In response to the floods of the 1950s, the Woady Yalloak was diverted away from Lake Corangamite and into the Barwon River. The diversion is managed on the basis of a trigger level for the lake, above which the diversion is enacted. This has not occurred in recent years. Levels have been dropping for decades and it is possible that it will dry completely. In 1980 the salinity was approximately that of seawater and has since risen at least four times that of seawater. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Lake Corangamite」の詳細全文を読む スポンサード リンク
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