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Journal Article

A three-dimensional model of chemically active trace species in the middle atmosphere during disturbed winter conditions

MPS-Authors

Brasseur,  Guy P.
External Author, MPI for Meteorology, Max Planck Society;
National Center for Atmospheric Research (NCAR);

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Citation

Rose, K., & Brasseur, G. P. (1989). A three-dimensional model of chemically active trace species in the middle atmosphere during disturbed winter conditions. Journal of Geophysical Research: Atmospheres, 94, 16,387-16,403. doi:10.1029/jd094id13p16387.


Cite as: https://hdl.handle.net/21.11116/0000-000E-B238-A
Abstract
The model results exhibit the gross features seen in the real atmosphere during a simulated wave number 1 warming, including the transport of chemically active trace species such as ozone, nitric acid, and nitrogen oxides. The model simulation suggests that the polar vortex behaves as a material entity during the planetary wave disturbance. At the same time, poleward transport is accomplished through tongues of tracers originating in the subtropics. Finally, scale interaction leads to mixing into even smaller scales, flattening gradients of tracer mixing ratios at mid-latitudes, while steepening them at the edge of the vortex. The relative influences of chemistry and dynamics on the distribution of these gases are investigated. -from Authors