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Simulation of Chemical Kinetics Transport in the Stratosphere

  • J. S. Chang
  • A. C. Hindmarsh
  • N. K. Madsen
Part of the The IBM Research Symposia Series book series (IRSS)

Abstract

It is well known that the chemical rate equations are often very stiff and their numerical solutions must be treated quite carefully. At the present this does not present any major difficulty due to the class of special methods for stiff ordinary differential equations. However, in the simulation of chemical kinetics transport in the stratosphere and related fields we are faced with a large system of stiff partial differential equations. Abstractly we may write the equations as
$$ \frac{{\partial y}}{{\partial t}} = T\left( y \right) + C\left( y \right), $$
(1)
where y is a vector representing the concentrations of the chemical species and t is simply time. T is a linear partial differential operator describing the mass transfer of the chemical species [Colgrove (1965A), Gudiksen (1968A)]†. C is a highly nonlinear chemical kinetics operator involving not only the concentrations of these species but also some complicated integrals of these concentrations [Crutzen (1971A), Johnston (1971A)]. The physical problem is usually formulated either as an initial-boundary value problem or simply as a boundary value problem \(\left( {i.e.\frac{{\partial y}} {{\partial t}} = 0} \right).\).

Keywords

Eddy Diffusion Stratospheric Ozone Transport Operator Linear Partial Differential Operator Ozone Measurement 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1974

Authors and Affiliations

  • J. S. Chang
    • 1
  • A. C. Hindmarsh
    • 1
  • N. K. Madsen
    • 1
  1. 1.Lawrence Livermore LaboratoryUniversity of CaliforniaLivermoreUSA

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