Mathematics – Logic
Scientific paper
Jun 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984mesjj..62..413k&link_type=abstract
Meteorological Society of Japan, Journal (ISSN 0026-1165), vol. 62, June 1984, p. 413-439.
Mathematics
Logic
3
Gas Transport, Ozone, Planetary Waves, Stratosphere, Meridional Flow, Photochemical Reactions, Primitive Equations, Spatial Distribution, Winter
Scientific paper
A semi-spectral hemispheric primitive equation model is used to study the role of temporary amplification of planetary waves in the transport of mid-winter stratospheric ozone. The results of a simulation involving the zonal wavenumber one are presented, and three-dimensional Lagrangian motions are investigated by tracing a large number of marked particles placed along latitude circles at the beginning of the wave. It is found that Lagrangian motions in the middle and lower parts of the stratosphere are irreversible due to the dissipation and the lower critical surface of the stratosphere. The particles in higher latitudes return to the initial latitude after the wave has damped. When the primary wave develops, a large ozone wave is induced in the middle latitudes which is followed by a total ozone enhancement in high latitudes and a decrease in tropical latitudes. The latitudinal pattern of the zonal mean ozone column at the active stage of the planetary wave is maintained even after the wave has disappeared. The net ozone change is responsible for the observed spring ozone maximum.
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