Articles | Volume 19, issue 3
https://doi.org/10.5194/cp-19-579-2023
© Author(s) 2023. 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-19-579-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| Highlight paper
| 
15 Mar 2023
Research article | Highlight paper |
| 15 Mar 2023
| 15 Mar 2023
The new Kr-86 excess ice core proxy for synoptic activity: West Antarctic storminess possibly linked to Intertropical Convergence Zone (ITCZ) movement through the last deglaciation
Christo Buizert
CORRESPONDING AUTHOR
College of Earth, Ocean and Atmospheric Sciences, Oregon State
University, Corvallis, OR 97331, USA
Invited contribution by Christo Buizert, recipient of the EGU Climate: Past, Present & Future Outstanding Early Career Scientists Award 2018.
Sarah Shackleton
Scripps Institution of Oceanography, University of California San
Diego, La Jolla, CA 92093, USA
present address: Department of Geosciences, Princeton University, Princeton, NJ 08544, USA
Jeffrey P. Severinghaus
Scripps Institution of Oceanography, University of California San
Diego, La Jolla, CA 92093, USA
William H. G. Roberts
Geography and Environmental Sciences, Northumbria University,
Newcastle, UK
BRIDGE, School of Geographical Sciences, University of Bristol, Bristol, UK
Alan Seltzer
Scripps Institution of Oceanography, University of California San
Diego, La Jolla, CA 92093, USA
Marine Chemistry and Geochemistry Department, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA
Bernhard Bereiter
Scripps Institution of Oceanography, University of California San
Diego, La Jolla, CA 92093, USA
Climate and Environmental Physics, Physics Institute, and Oeschger
Centre for Climate Change Research, University of Bern, 3012 Bern, Switzerland
Kenji Kawamura
National Institute of Polar Research, 10-3 Midori-cho, Tachikawa, Tokyo 190-8518, Japan
Department of Polar Science, The Graduate University for Advanced Studies, SOKENDAI, Tokyo 190-8518, Japan
Japan Agency for Marine Science and Technology, Yokosuka 237-0061, Japan
Daniel Baggenstos
Climate and Environmental Physics, Physics Institute, and Oeschger
Centre for Climate Change Research, University of Bern, 3012 Bern, Switzerland
Anaïs J. Orsi
Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, l'Orme des merisiers, Gif-sur-Yvette, France
Earth, Ocean and Atmospheric Sciences Department, The University of
British Columbia, Vancouver, BC V6T 1Z4, Canada
Ikumi Oyabu
National Institute of Polar Research, 10-3 Midori-cho, Tachikawa, Tokyo 190-8518, Japan
Benjamin Birner
Scripps Institution of Oceanography, University of California San
Diego, La Jolla, CA 92093, USA
Jacob D. Morgan
Scripps Institution of Oceanography, University of California San
Diego, La Jolla, CA 92093, USA
Edward J. Brook
College of Earth, Ocean and Atmospheric Sciences, Oregon State
University, Corvallis, OR 97331, USA
David M. Etheridge
CSIRO Environment, PMB 1, Aspendale, Victoria 3195, Australia
Australian Antarctic Program Partnership, Institute for Marine & Antarctic Studies, University of Tasmania, Hobart, Tasmania 7004, Australia
David Thornton
CSIRO Environment, PMB 1, Aspendale, Victoria 3195, Australia
Australian Antarctic Program Partnership, Institute for Marine & Antarctic Studies, University of Tasmania, Hobart, Tasmania 7004, Australia
Nancy Bertler
Antarctic Research Centre, Victoria University of Wellington,
Wellington 6012, New Zealand
GNS Science, Lower Hut 5010, New Zealand
Rebecca L. Pyne
Antarctic Research Centre, Victoria University of Wellington,
Wellington 6012, New Zealand
Robert Mulvaney
British Antarctic Survey, National Environment Research Council,
Cambridge CB3 0ET, UK
Ellen Mosley-Thompson
Byrd Polar and Climate Research Center, The Ohio State University,
Columbus, OH 43210, USA
Peter D. Neff
Department of Soil, Water, and Climate, University of Minnesota,
Saint Paul, MN 55108, USA
Department of Earth and Environmental Sciences, University of
Rochester, Rochester, NY 14627, USA
Vasilii V. Petrenko
Department of Earth and Environmental Sciences, University of
Rochester, Rochester, NY 14627, USA
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Co-editor-in-chief
This paper presents a new proxy application of permanent gas isotopes in ice core research based on the kinetic fractionation of gases in the firn column of polar ice sheets (offset from the diffusive equilibrium profile) which may be induced by synoptic atmospheric pressure variations at the surface. Although still exploratory in nature, this new proxy would allow to reconstruct changes in mean synoptic activity for different climate states based on ice core data.
This paper presents a new proxy application of permanent gas isotopes in ice core research based...
Short summary
It is unclear how different components of the global atmospheric circulation, such as the El Niño effect, respond to large-scale climate change. We present a new ice core gas proxy, called krypton-86 excess, that reflects past storminess in Antarctica. We present data from 11 ice cores that suggest the new proxy works. We present a reconstruction of changes in West Antarctic storminess over the last 24 000 years and suggest these are caused by north–south movement of the tropical rain belt.
It is unclear how different components of the global atmospheric circulation, such as the El...
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