Anomalous flow below 2700m in the EPICA Dome C ice core detected using δO of atmospheric oxygen measurements

Change in ice rheology during climate variations – implications for ice flow modelling and dating of the EPICA Dome C core

The study of the distribution of crystallographic orientations (i.e., the fabric) along ice cores provides information on past and current ice flow in ice-sheets. Besides the usually observed formation of a vertical single maximum fabric, the EPICA Dome C ice core (EDC) shows an abrupt and unexpected strengthening of its fabric during termination II around 1750 m depth. Such strengthening has a...

Change of the ice rheology with climatic transitions – implication on ice flow modelling and dating of the EPICA Dome C core

The study of the distribution of the crystallographic orientations (the fabric) along ice cores supplies information on the past and current ice flows of ice-sheets. Beside the usually observed formation of a vertical single maximum fabric, the EPICA Dome Con-cordia ice core (EDC) shows an abrupt and unexpected strenghtening of its fabric dur-5 ing termination II around 1750 m depth. Such stren...

An oceanic cold reversal during the last deglaciation.

A detailed deuterium excess profile measured along the Dome C EPICA (European Project for Ice Coring in Antarctica) core reveals the timing and strength of the sea surface temperature changes at the source regions for Dome C precipitation. We infer that an Oceanic Cold Reversal took place in the southern Indian Ocean, 800 years after the Antarctic Cold Reversal. The temperature gradient between...

Automatic reconstruction of polycrystalline ice microstructure from image analysis : application to the EPICA ice core at Dome Concordia, Antarctica

The EDC3 chronology for the EPICA Dome C ice core

The EPICA (European Project for Ice Coring in Antarctica) Dome C drilling in East Antarctica has now been completed to a depth of 3260 m, at only a few meters above bedrock. Here we present the new EDC3 chronology, which is based on the use of 1) a snow accumulation and mechanical flow model, and 2) a set of independent age markers along the core. These are obtained by pattern matching of recor...