Extending the ice core record beyond half a million years
Article first published online: 3 JUN 2011
©2002. American Geophysical Union. All Rights Reserved.
Eos, Transactions American Geophysical Union
Volume 83, Issue 45, pages 509–517, 5 November 2002
How to Cite
The EPICA Dome C 2001-02 Science and Drilling Teams (2002), Extending the ice core record beyond half a million years, Eos Trans. AGU, 83(45), 509–517, doi:10.1029/2002EO000352.
- Issue published online: 3 JUN 2011
- Article first published online: 3 JUN 2011
Ice cores have been a crucial source of information about past changes in the climate and atmosphere. The Vostok ice core from Antarctica has provided key global change data sets extending 400,000 years in the past [Petit et al., 1999], while Japanese scientists drilling at Dome Fuji have obtained records extending to 330,000 years. Now, a new core being drilled by a consortium of European laboratories has surpassed these ages, and looks like extending the ice core record several hundred thousand years into the past.
Ice cores are unique: of all the paleo-records, they have the most direct linkage with the atmosphere. At some sites, the time resolution is sufficient to study extremely fast climate changes; and they have information about many forcing factors for climate (including greenhouse gas concentrations) displayed in the same cores as the resulting climate changes.