Presentations and Publications Fahey, K. M., Carlton, A. G., Pye, H. O. T., Baek, J., Hutzell, W. T., Stanier, C. O., Baker, K. R., Appel, K. W., Jaoui, M., and Offenberg, J. H.: A framework for expanding aqueous chemistry in the Community Multiscale Air Quality (CMAQ) model version 5.1, Geosci. Model Dev., 10, 1587-1605, doi:10.5194/gmd-10-1587-2017, 2017. This paper describes the development and
implementation of an extendable aqueous-phase chemistry option
(AQCHEM − KMT(I)) for the Community Multiscale Air Quality (CMAQ)
modeling system, version 5.1. Here, the Kinetic PreProcessor (KPP),
version 2.2.3, is used to generate a Rosenbrock solver (Rodas3) to
integrate the stiff system of ordinary differential equations (ODEs)
that describe the mass transfer, chemical kinetics, and scavenging
processes of CMAQ clouds. CMAQ's standard cloud chemistry module
(AQCHEM) is structurally limited to the treatment of a simple chemical
mechanism. This work advances our ability to test and implement more
sophisticated aqueous chemical mechanisms in CMAQ and further
investigate the impacts of microphysical parameters on cloud chemistry.
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