Articles | Volume 15, issue 2
https://doi.org/10.5194/cp-15-751-2019
© Author(s) 2019. 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-15-751-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
10 Apr 2019
Research article |
| 10 Apr 2019
| 10 Apr 2019
A 2700-year annual timescale and accumulation history for an ice core from Roosevelt Island, West Antarctica
Centre for Ice and Climate, Niels Bohr Institute, University of
Copenhagen, Copenhagen, Denmark
now at: Danish Meteorological Institute, Copenhagen, Denmark
Paul Vallelonga
Centre for Ice and Climate, Niels Bohr Institute, University of
Copenhagen, Copenhagen, Denmark
Helle A. Kjær
Centre for Ice and Climate, Niels Bohr Institute, University of
Copenhagen, Copenhagen, Denmark
Tyler J. Fudge
Earth and Space Sciences, University of Washington, Seattle, WA, USA
James E. Lee
College of Earth, Ocean, and Atmospheric Sciences, Oregon State
University, Corvallis, OR, USA
Marie H. Riis
Centre for Ice and Climate, Niels Bohr Institute, University of
Copenhagen, Copenhagen, Denmark
Ross Edwards
Physics and Astronomy, Curtin University, Perth, Western Australia,
Australia
Department of Civil and Environmental Engineering, University of
Wisconsin-Madison, Madison, WI, USA
Nancy A. N. Bertler
Antarctic Research Centre, Victoria University of Wellington, Wellington,
New Zealand
GNS Science, Lower Hutt, New Zealand
Thomas Blunier
Centre for Ice and Climate, Niels Bohr Institute, University of
Copenhagen, Copenhagen, Denmark
Ed J. Brook
College of Earth, Ocean, and Atmospheric Sciences, Oregon State
University, Corvallis, OR, USA
Christo Buizert
College of Earth, Ocean, and Atmospheric Sciences, Oregon State
University, Corvallis, OR, USA
Gabriela Ciobanu
Centre for Ice and Climate, Niels Bohr Institute, University of
Copenhagen, Copenhagen, Denmark
Howard Conway
Earth and Space Sciences, University of Washington, Seattle, WA, USA
Dorthe Dahl-Jensen
Centre for Ice and Climate, Niels Bohr Institute, University of
Copenhagen, Copenhagen, Denmark
Aja Ellis
Physics and Astronomy, Curtin University, Perth, Western Australia,
Australia
B. Daniel Emanuelsson
Antarctic Research Centre, Victoria University of Wellington, Wellington,
New Zealand
GNS Science, Lower Hutt, New Zealand
Richard C. A. Hindmarsh
British Antarctic Survey, Cambridge, UK
Elizabeth D. Keller
GNS Science, Lower Hutt, New Zealand
Andrei V. Kurbatov
Climate Change Institute, University of Maine, Orono, ME, USA
Paul A. Mayewski
Climate Change Institute, University of Maine, Orono, ME, USA
Peter D. Neff
Earth and Environmental Sciences, University of Rochester, Rochester,
NY, USA
Rebecca L. Pyne
GNS Science, Lower Hutt, New Zealand
Marius F. Simonsen
Centre for Ice and Climate, Niels Bohr Institute, University of
Copenhagen, Copenhagen, Denmark
Anders Svensson
Centre for Ice and Climate, Niels Bohr Institute, University of
Copenhagen, Copenhagen, Denmark
Andrea Tuohy
Antarctic Research Centre, Victoria University of Wellington, Wellington,
New Zealand
GNS Science, Lower Hutt, New Zealand
Edwin D. Waddington
Earth and Space Sciences, University of Washington, Seattle, WA, USA
Sarah Wheatley
Climate Change Institute, University of Maine, Orono, ME, USA
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Discussed (final revised paper)
Latest update: 08 Jul 2025
Short summary
We present a 2700-year timescale and snow accumulation history for an ice core from Roosevelt Island, Ross Ice Shelf, Antarctica. We observe a long-term slightly decreasing trend in accumulation during most of the period but a rapid decline since the mid-1960s. The latter is linked to a recent strengthening of the Amundsen Sea Low and the expansion of regional sea ice. The year 1965 CE may thus mark the onset of significant increases in sea-ice extent in the eastern Ross Sea.
We present a 2700-year timescale and snow accumulation history for an ice core from Roosevelt...
