Bipolar Changes in Atmospheric Circulation During the Little Ice Age

Annually dated ice cores from Siple Dome, West Antarctica, and central Greenland indicate that meridional atmospheric circulation intensity increased in the polar South Pacific and North Atlantic at the beginning (∼1400 A.D.) of the most recent Holocene rapid climate change event, the Little Ice Age...

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Bibliographic Details
Published in:Science
Main Authors: Kreutz, Karl J., Mayewski, Paul A., Meeker, L. David, Twickler, Mark S., Whitlow, Sallie I., Pittalwala, Iqbal I.
Format: Text
Language:unknown
Published: University of New Hampshire Scholars' Repository 1997
Subjects:
Greenland
Pacific
Siple
Siple Dome
West Antarctica
Antarc*
Antarctica
North Atlantic
Online Access:https://scholars.unh.edu/faculty_pubs/354
https://doi.org/10.1126/science.277.5330.1294
Description
Summary:Annually dated ice cores from Siple Dome, West Antarctica, and central Greenland indicate that meridional atmospheric circulation intensity increased in the polar South Pacific and North Atlantic at the beginning (∼1400 A.D.) of the most recent Holocene rapid climate change event, the Little Ice Age (LIA). As deduced from chemical concentrations at these core sites, the LIA was characterized by substantial meridional circulation strength variability, and this variability persists today despite strong evidence for an end to LIA cooling. Thus, increased late 20th century storm variability may be in part a result of the continuation of these climatic fluctuations.

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