Aleah Sommers¹, Bette L Otto-Bliesner¹, William Lipscomb², Patrick J Bartlein³, Sarah L Shafer⁴, Marcus Lofverstrom⁵, Robert A Tomas⁶, Esther C Brady⁷, Gunter Leguy² and Katherine Thayer-Calder², (1)National Center for Atmospheric Research, Climate and Global Dynamics Laboratory, Boulder, CO, United States, (2)National Center for Atmospheric Research, Boulder, CO, United States, (3)University of Oregon, Geography, Eugene, OR, United States, (4)US Geological Survey, Corvallis, OR, United States, (5)University of Arizona, Tucson, AZ, United States, (6)NCAR, Boulder, CO, United States, (7)National Center for Atmospheric Research, Boulder, Boulder, CO, United States