Summary: Clim. Past, 7, 249­263, 2011
www.clim-past.net/7/249/2011/
doi:10.5194/cp-7-249-2011
© Author(s) 2011. CC Attribution 3.0 License.
Climate
of the Past
Initiation of a Marinoan Snowball Earth in a state-of-the-art
atmosphere-ocean general circulation model
A. Voigt1,2, D. S. Abbot3, R. T. Pierrehumbert3, and J. Marotzke1
1Max Planck Institute for Meteorology, Hamburg, Germany
2International Max Planck Research School on Earth System Modelling, Hamburg, Germany
3Department of Geophysical Sciences, University of Chicago, Chicago, Illinois, USA
Received: 9 September 2010 ­ Published in Clim. Past Discuss.: 23 September 2010
Revised: 4 January 2011 ­ Accepted: 8 February 2011 ­ Published: 10 March 2011
Abstract. We study the initiation of a Marinoan Snow-
ball Earth (635 million years before present) with the
state-of-the-art atmosphere-ocean general circulation model
ECHAM5/MPI-OM. This is the most sophisticated model
ever applied to Snowball initiation. A comparison with a pre-
industrial control climate shows that the change of surface

Source: Abbot, Dorian Schuyler - Department of Geophysical Sciences, University of Chicago

Collections: Geosciences