Gas-phase Chemistry Numerics: A Review Of Several Methods
Price
Free (open access)
Transaction
Volume
3
Pages
8
Published
1994
Size
838 kb
Paper DOI
10.2495/AIR940321
Copyright
WIT Press
Author(s)
P.A. Makar, J.C. McConnell & G.P. Klaassen
Abstract
Several numerical methods for performing gas-phase chemistry simulations are reviewed. Each method was used to simulate six days of diurnal variations in a simplified tropospheric reaction system. The average errors and CPU-times of each method (compared to a standard, high order code) are presented. For large numbers of chemical simulations, a combination of a one-step Newton's iteration and a higher order backward difference was found to provide the best compromise between CPU-time and accuracy. A detailed comparison between this combined method and a high order backward difference showed that the accuracy of the method can vary between different species. Techniques that can be used
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