Observational Constraints on the Vertical and Interhemispheric Gradient of the Ar/N2 Ratio in the Troposphere

Eric James Morgan1, Britton B Stephens2, Benjamin Birner1 and Ralph F Keeling3, (1)Scripps Institution of Oceanography, La Jolla, CA, United States, (2)National Center for Atmospheric Research, Earth Observing Laboratory, Boulder, CO, United States, (3)Univ California San Diego, La Jolla, CA, United States