Articles | Volume 16, issue 5
https://doi.org/10.5194/cp-16-1691-2020
https://doi.org/10.5194/cp-16-1691-2020
Research article
 | 
02 Sep 2020
Research article |  | 02 Sep 2020

An 83 000-year-old ice core from Roosevelt Island, Ross Sea, Antarctica

James E. Lee, Edward J. Brook, Nancy A. N. Bertler, Christo Buizert, Troy Baisden, Thomas Blunier, V. Gabriela Ciobanu, Howard Conway, Dorthe Dahl-Jensen, Tyler J. Fudge, Richard Hindmarsh, Elizabeth D. Keller, Frédéric Parrenin, Jeffrey P. Severinghaus, Paul Vallelonga, Edwin D. Waddington, and Mai Winstrup

Viewed

Total article views: 5,494 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
3,919 1,452 123 5,494 347 115 135
  • HTML: 3,919
  • PDF: 1,452
  • XML: 123
  • Total: 5,494
  • Supplement: 347
  • BibTeX: 115
  • EndNote: 135
Views and downloads (calculated since 26 Jun 2018)
Cumulative views and downloads (calculated since 26 Jun 2018)

Viewed (geographical distribution)

Total article views: 5,494 (including HTML, PDF, and XML) Thereof 4,809 with geography defined and 685 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 

Cited

Latest update: 14 Dec 2024
Download
Short summary
The Roosevelt Island ice core was drilled to investigate climate from the eastern Ross Sea, West Antarctica. We describe the ice age-scale and gas age-scale of the ice core for 0–763 m (83 000 years BP). Old ice near the bottom of the core implies the ice dome existed throughout the last glacial period and that ice streaming was active in the region. Variations in methane, similar to those used as evidence of early human influence on climate, were observed prior to significant human populations.