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Influence Of Isentropic Mixing On Seasonal Ozone Variations In The Lower Stratosphere And Upper Troposphere, Ping Jing, Derek M. Cunnold, Es Yang, Hj Wang

School of Environmental Sustainability: Faculty Publications and Other Works

[1] The isentropic cross-tropopause ozone transport has been estimated in both hemispheres in 1999 based on the potential vorticity mapping of Stratospheric Aerosol and Gas Experiment II ozone measurements and contour advection calculations using the NASA Goddard Space Flight Center Global and Modeling Assimilation Office analysis. The estimated net isentropic stratosphere-to-troposphere ozone flux is ∼118 ± 61 × 10⁹ kg yr⁻¹ globally within the layer between 330 and 370 K in 1999; 60% of it is found in the Northern Hemisphere, and 40% is found in the Southern Hemisphere. The monthly average ozone fluxes are strongest in summer …