Mathematics
Scientific paper
Jun 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991phdt........23h&link_type=abstract
Ph.D. Thesis Georgia Inst. of Tech., Atlanta.
Mathematics
Atmospheric Circulation, Atmospheric Diffusion, Atmospheric Models, Mathematical Models, Ozone, Stratosphere, Three Dimensional Models, Turbulent Diffusion, Winter, Continuity Equation, Diffusion Coefficient, Gas Transport, Middle Atmosphere, Nonlinearity, Photochemical Reactions, Planetary Waves, Thermodynamics, Transport Theory, Vortices
Scientific paper
The importance of the eddy transport of ozone in determining the zonally averaged ozone distribution of winter stratosphere is demonstrated utilizing the results of a modified version of a three-dimensional model by Cunnold et al (1975), especially in the region of transition between dynamic control and photochemical control of ozone, where the ozone changes due to the eddy transports are shown to dominate those due to the mean circulation. The contributions of the chemical eddy transports are significant to the net ozone eddy transports by standing planetary waves in the transition region. As a result, using the universal constant diffusion tensor which is derived under the assumption of negligible photochemistry will lead to a significant error in the simulated mean ozone distribution of the two-dimensional models at altitudes between 30 and 45 km. The comparison of the model net ozone eddy fluxes due to standing planetary wavenumber 1 and 2 and those calculated from the formulation of Garcia and Solomon (1983) based on linear theory, indicates that the contribution of the nonlinear terms of the eddy tracer continuity equation and thermodynamic equation plays an essential role on the net ozone eddy transports by stationary Rossby waves, even when they are small compared to the linear stationary terms. The relative importance of stationary wavenumber 2 on the ozone changes in comparison with stationary wavenumber 1 is also discussed.
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