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Water levels, balance, and chemistry of Lake George, New South Wales

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Created 20/01/2025

Updated 20/01/2025

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The marked water-level fluctuations of Lake George, a closed lake in southern New South Wales, have long been a subject of speculation. Monitoring over a 20-year period (1958-77) shows that the fluctuations are a response to seasonal and long-term variations in rainfall, evaporation and inflow of streams. An approximate water balance for the lake has been computed and shows marked seasonal characteristics; increases in water volume between May and October correspond with high inflows and low evaporation, while decreases in water volume between November and April correspond with low inflows and high evaporation. The long-term fluctuations reflect climatic variability. Salinity of the lake water, which is a sodium chloride type, varies inversely with water volume. A substantial net loss in salt was observed during a recessive phase of the lake in 1973.

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Title Water levels, balance, and chemistry of Lake George, New South Wales
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/40abab04-fee1-4914-ac00-0ae0a66153cf
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage {"type": "Polygon", "coordinates": [[[149.35, -35.3], [149.55, -35.3], [149.55, -34.8], [149.35, -34.8], [149.35, -35.3]]]}
Data Portal data.gov.au