WISCONSINAN AND HOLOCENE CLIMATE HISTORY FROM AN ICE CORE AT TAYLOR DOME, WESTERN ROSS EM- WISCONSINAN AND HOLOCENE CLIMATE HISTORY FROM AN ICE CORE AT TAYLOR DOME, WESTERN ROSS EMBAYMENT, ANTARCTICA BY

ABSTRACT. Geochemical data and geophysical measurements from a 554-m ice-core from Taylor Dome, East Antarctica, provide the basis for climate reconstruction in the western Ross Embayment through the entire Wisconsinan and Holocene. In comparison with ice cores from central East and West Antarctica,...

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Bibliographic Details
Main Authors: Eric J. Steig, David L. Morse, Edwin D. Waddington, Minze Stuiver, Pieter M. Grootes, Paul A. Mayewski, Mark S. Twickler, Sallie, I. Whitlow
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Subjects:
East Antarctica
High Lake
Ross Sea
Taylor Dome
West Antarctica
Antarc*
Antarctica
ice core
Ice Sheet
Sea ice
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.360.3286
http://depts.washington.edu/isolab/papers/SteigGeograf.pdf
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Summary:ABSTRACT. Geochemical data and geophysical measurements from a 554-m ice-core from Taylor Dome, East Antarctica, provide the basis for climate reconstruction in the western Ross Embayment through the entire Wisconsinan and Holocene. In comparison with ice cores from central East and West Antarctica, Taylor Dome shows greater variance of temperature, snow accumulation, and aerosol concentrations, reflecting significant variability in atmospheric circulation and air mass moisture content. Extreme aridity during the last glacial maximum at Taylor Dome reflects both colder temperatures and a shift in atmospheric circulation patterns associated with the advance of the Ross Sea ice sheet and accounts for regional alpine glacier retreats and high lake levels in the Dry Valleys. Inferred relationships between spatial accumulation gradients and ice sheet configuration indicate that advance of the Ross Sea ice sheet began in late marine isotope

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