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Palaeohydrological modelling of Ace Lake, Vestfold Hills, AntarcticaInstitute of Antarctic and Southern Ocean Studies, University of Tasmania, GPO Box 252–77, Hobart, Tasmania, Australia, 7001
School of Civil and Mechanical Engineering, University of Tasmania, GPO Box 252–65, Hobart, Tasmania, Australia, 7001
Australian Antarctic Division, Channel Highway, Kingston, Tasmania, Australia, 7050
Institute of Antarctic and Southern Ocean Studies, University of Tasmania, GPO Box 252–77, Hobart, Tasmania, Australia, 7001
Australian Nuclear Science and Technology Organization, New Illawarra Road, Lucas Heights, New South Wales, Australia, 2234 The major influences on the salinity and water level of an Antarctic lake are parameterized and a palaeohydrological model linking the palaeosalinity of an Antarctic lake to the palaeohydrology of the lake is developed. Climatic change in this lake is recorded in the evaporative loss trend reconstructed from water level and lakewater salinity estimates. A decrease in salinity betweeñ700 and 200 years BP corresponds with c. 5 m increase in water level over the same time period. Both water level and lakewater salinity then stabilize in the last ~200 years BP. The palaeohydrological model derived from the changes inferred in salinity and water level shows that there is no significant change in evaporation for the last ~700 years but that a lower evaporation period is evident at ~150–200 years BP suggestive of a mild ‘Little Ice Age’ event in the Vestfold Hills.
Key Words: Palaeosalinity • palaeohydrology • modelling • ‘Little Ice Age’ • Vestfold Hills, Antarctica
The Holocene, Vol. 9, No. 5,
515-520 (1999) This article has been cited by other articles:
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