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AGU: Reviews of Geophysics

 

Keywords

  • sea level
  • MIS 3
  • seesaw
  • Dansgaard-Oeschger

Index Terms

  • Paleoceanography: Abrupt/rapid climate change
  • Paleoceanography: Interhemispheric phasing
  • Paleoceanography: Thermohaline
  • Cryosphere: Ice sheets

Abstract

REVIEWS OF GEOPHYSICS, VOL. 46, RG4003, 29 PP., 2008
doi:10.1029/2007RG000226

Marine isotope stage 3 sea level fluctuations: Data synthesis and new outlook

M. Siddall

Lamont-Doherty Earth Observatory, Palisades, New York, USA

E. J. Rohling

National Oceanography Centre, Southampton, Southampton, UK

W. G. Thompson

Woods Hole Oceanographic Institution, Woods Hole, Massachusetts, USA

C. Waelbroeck

Laboratoire des Sciences du Climat et de l'Environnement, IPSL, CEA, CNRS, Gif-sur-Yvette, France

To develop a better understanding of the abrupt Dansgaard-Oeschger mode of climate change, it is essential that we establish whether the ice sheets are actively involved, as trigger or amplifier, or whether they merely respond in a passive manner. This requires careful assessment of the fundamental issues of magnitude and phasing of global ice volume fluctuations within marine isotope stage 3 (MIS 3), which to date remain enigmatic. We review recent advances in observational studies pertaining to these key issues and discuss the implications for modeling studies. Our aim is to construct a robust stratigraphic framework for the MIS 3 period regarding sea level variability, using the most up-to-date arguments available by combining insights from both modeling and observational approaches.

Received 2 May 2007; accepted 16 May 2008; published 5 November 2008.

Citation: Siddall, M., E. J. Rohling, W. G. Thompson, and C. Waelbroeck (2008), Marine isotope stage 3 sea level fluctuations: Data synthesis and new outlook, Rev. Geophys., 46, RG4003, doi:10.1029/2007RG000226.

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