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Sensitivity studies and a simple ozone perturbation experiment with a truncated two-dimensional model of the stratosphereThe 1-1/2-D model of Holton (1986), which is actually a highly truncated two-dimensional model, describes latitudinal variations of tracer mixing ratios in terms of their projections onto second-order Legendre polynomials. The present study extends the work of Holton by including tracers with photochemical production in the stratosphere (O3 and NOy). It also includes latitudinal variations in the photochemical sources and sinks, improving slightly the calculated global mean profiles for the long-lived tracers studied by Holton and improving substantially the latitudinal behavior of ozone. Sensitivity tests of the dynamical parameters in the model are performed, showing that the response of the model to changes in vertical residual meridional winds and horizontal diffusion coefficients is similar to that of a full two-dimensional model. A simple ozone perturbation experiment shows the model's ability to reproduce large-scale latitudinal variations in total ozone column depletions as well as ozone changes in the chemically controlled upper stratosphere.
Document ID
19880029958
Document Type
Reprint (Version printed in journal)
Authors
Stordal, Frode
(National Center for Atmospheric Research Boulder, CO, United States)
Garcia, Rolando R.
(National Center for Atmospheric Research Boulder, CO, United States)
Date Acquired
August 13, 2013
Publication Date
October 20, 1987
Publication Information
Publication: Journal of Geophysical Research
Volume: 92
ISSN: 0148-0227
Subject Category
Geophysics
Distribution Limits
Public
Copyright
Other
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