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Late-Holocene East Antarctic climate trends from ice-core and lake-sediment proxies


Roberts, D and van Ommen, TD and McMinn, A and Morgan, VI and Roberts, JL, Late-Holocene East Antarctic climate trends from ice-core and lake-sediment proxies, The Holocene, 11, (1) pp. 117-120. ISSN 0959-6836 (2001) [Refereed Article]

DOI: doi:10.1191/095968301677143452


A high-resolution record of evaporation for the last ∼650 years was derived from the diatom-salinity signal preserved in a sediment core taken from Ace Lake, Vestfold Hills (68° 28′S, 78° 11′E), Antarctica. The seasonal oxygen isotope signal preserved in an ice core from Law Dome (66° 44′S, 112° 50′E), Antarctica, revealed a high-resolution summer temperature record for the same time period. The two proxies show highly correlated behaviour despite having significantly different climatic response mechanisms and a large geographic separation. The correlation observed between proxies based on such differing processes and analytical methodologies provides not only a climate record for the past ∼650 years that is both robust and regionally representative of coastal East Antarctica but also confirmation of the utility of reconstructions using these methods.

Item Details

Item Type:Refereed Article
Research Division:Earth Sciences
Research Group:Geology
Research Field:Palaeontology (incl. palynology)
Objective Division:Environmental Policy, Climate Change and Natural Hazards
Objective Group:Adaptation to climate change
Objective Field:Social impacts of climate change and variability
UTAS Author:Roberts, D (Dr Donna Roberts)
UTAS Author:van Ommen, TD (Dr Tas van Ommen)
UTAS Author:McMinn, A (Professor Andrew McMinn)
UTAS Author:Morgan, VI (Mr Vincent Morgan)
UTAS Author:Roberts, JL (Dr Jason Roberts)
ID Code:22157
Year Published:2001
Web of Science® Times Cited:27
Deposited By:IASOS
Deposited On:2001-08-01
Last Modified:2002-06-12

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