Contrasting Upper and Lower Atmospheric Metrics of Tropical Expansion

Abraham L Solomon1, Prof. Lorenzo M Polvani, PhD1, Darryn Waugh2 and Sean M Davis3, (1)Columbia University of New York, Palisades, NY, United States, (2)Johns Hopkins University, Earth and Planetary Sciences, Baltimore, MD, United States, (3)University of Colorado / CIRES, Boulder, CO, United States