Sep 1, 2013

EEE 2012: September 2012 Arctic Sea Ice Minimum: Discriminating Between Sea Ice Memory, The August 2012 Extreme Storm, and Prevailing Warm Conditions

by
Virginie Guemas, Francisco Doblas-Reyes, Agathe Germe, Matthieu Chevallier, and David Salas y Mélia
,
Bulletin of the American Meteorological Society

Main findings:

The exceptional 2012 sea ice loss was primarily due to the sea ice memory and to the positive feedback of the warm atmospheric conditions, both contributing approximately equally. Our results also point at a negligible contribution of the extreme 2012 summer storm. However, our model fails to reproduce the abrupt fall in daily sea ice extent observed by satellite at the storm passage (not shown), which suggests that we underestimate its contribution in this study.


Full report:

EEE 2012: Explaining Extreme Events of 2012 from a Climate Perspective