Articles | Volume 16, issue 5
https://doi.org/10.5194/cp-16-1691-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-16-1691-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
02 Sep 2020
Research article |
| 02 Sep 2020
| 02 Sep 2020
An 83 000-year-old ice core from Roosevelt Island, Ross Sea, Antarctica
College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, USA
Edward J. Brook
College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, USA
Nancy A. N. Bertler
Antarctic Research Centre, Victoria University of Wellington, Wellington, New Zealand
GNS Science, Gracefield, Lower Hutt, 5010, New Zealand
Christo Buizert
College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, USA
Troy Baisden
GNS Science, Gracefield, Lower Hutt, 5010, New Zealand
now at: Faculty of Science and Engineering, University of Waikato, Hamilton, New Zealand
Thomas Blunier
Centre for Ice and Climate, Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark
V. Gabriela Ciobanu
Centre for Ice and Climate, Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark
Howard Conway
Department of Earth and Space Sciences, University of Washington, Seattle, WA 98195, USA
Dorthe Dahl-Jensen
Centre for Ice and Climate, Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark
Tyler J. Fudge
Department of Earth and Space Sciences, University of Washington, Seattle, WA 98195, USA
Richard Hindmarsh
British Antarctic Survey, Cambridge CB3 0ET, UK
Elizabeth D. Keller
GNS Science, Gracefield, Lower Hutt, 5010, New Zealand
Frédéric Parrenin
Centre National de la Recherche Scientifique, Institut de Recherche pour le Développement, Institut des Géosciences de l'Environnement, University Grenoble Alpes, 38000 Grenoble, France
Jeffrey P. Severinghaus
Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA 92093, USA
Paul Vallelonga
Centre for Ice and Climate, Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark
Edwin D. Waddington
Department of Earth and Space Sciences, University of Washington, Seattle, WA 98195, USA
Mai Winstrup
Centre for Ice and Climate, Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark
Data sets
Roosevelt Island Ice Core Time Scale and Associated Data E. J. Brook and J. E. Lee https://doi.org/10.15784/601359
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.
The Roosevelt Island ice core was drilled to investigate climate from the eastern Ross Sea, West...
