The Dating of Ice-Core Archives

International audienceThe wealth of testimony about past variations in our climate and environment found in deep ice cores in Antarctica and Greenland is acknowledged well beyond the limits of glaciological research. Uniquely, both local climate variations and global atmospheric composition can be reconstructed from a single archive: the ice. Effective use of the information provided by the glacial archives requires dating as precisely as possible of these various records. To do this, the specific characteristics of ice need to be considered