Genevieve Clow, University of Colorado at Boulder, Atmospheric and Oceanic Sciences, Boulder, United States, Nicole S Lovenduski, University of Colorado, Department of Atmospheric and Oceanic Sciences, Boulder, CO, United States, Kristen M. Krumhardt, NCAR, Boulder, United States, Michael Levy, National Center for Atmospheric Research, Climate and Global Dynamics, Boulder, United States and Keith T Lindsay, NCAR, Boulder, CO, United States