Isentropic transport and the seasonal cycle amplitude of CO2

Elizabeth A Barnes, Colorado State University, Department of Atmospheric Science, Fort Collins, United States, Nicholas Parazoo, Jet Propulsion Laboratory, Pasadena, United States, Clara Orbe, NASA Goddard Institute for Space Studies, New York, NY, United States and A Scott Denning, Colorado State University, Atmospheric Sciences, Fort Collins, CO, United States