High-resolution 10Be concentrations in the EDC96 ice core

A new, decadally resolved record of the 10Be peak at 41 kyr from the EPICA Dome C ice core (Antarctica) is used to match it with the same peak in the GRIP ice core (Greenland). This permits a direct synchronisation of the climatic variations around this time period, independent of uncertainties rela...

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Bibliographic Details
Main Authors: Raisbeck, Grant M, Yiou, Françoise, Jouzel, Jean, Stocker, Thomas F
Format: Dataset
Language:English
Published: PANGAEA 2007
Subjects:
Antarctica
Beryllium-10
water
DEPTH
ice/snow
Dome C
EDC96
EPICA
European Project for Ice Coring in Antarctica
ICEDRILL
Ice drill
Antarctic
Greenland
Snow Dome
Antarc*
GRIP
ice core
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.872445
https://doi.org/10.1594/PANGAEA.872445
Description
Summary:A new, decadally resolved record of the 10Be peak at 41 kyr from the EPICA Dome C ice core (Antarctica) is used to match it with the same peak in the GRIP ice core (Greenland). This permits a direct synchronisation of the climatic variations around this time period, independent of uncertainties related to the ice age-gas age difference in ice cores. Dansgaard-Oeschger event 10 is in the period of best synchronisation and is found to be coeval with an Antarctic temperature maximum. Simulations using a thermal bipolar seesaw model agree reasonably well with the observed relative climate chronology in these two cores. They also reproduce three Antarctic warming events observed between A1 and A2.

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