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Palaeohydrological modelling of Ace Lake, Vestfold Hills, Antarctica

journal contribution
posted on 2023-05-16, 11:46 authored by Roberts, D, Jason RobertsJason Roberts, Gibson, JAE, Andrew McMinnAndrew McMinn, Heijnis, H
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 between ~700 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.

History

Publication title

The Holocene

Volume

9

Issue

5

Pagination

515-520

ISSN

0959-6836

Department/School

Institute for Marine and Antarctic Studies

Publisher

Arnold

Place of publication

London

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the environmental sciences

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