Simulating Atmospheric Gas Phase Chemistry: Uncertainties And Mechanism Reduction Problems

  • J. M. Pilling
Conference paper
Part of the NATO Science for Peace and Security Series C: Environmental Security book series (NAPSC)

Chemical mechanisms are required in the modeling of atmospheric processes such as regional ozone formation and climate change. The master chemical mechanism (MCM) is an almost explicit mechanism describing the atmospheric oxidation of 135 primary emitted volatile organic compounds (VOCs). The basis of the protocols used for constructing the MCM is described, together with the website used for dissemination. The components of the MCM require evaluation against simulation chamber data. An approach to the conduct of such evaluations is discussed, which includes assessment of the uncertainties in models constructed using the MCM. The MCM is too large for use in atmospheric models based on an Eulerian approach. Methods for reducing and lumping the MCM are outlined.


Tropospheric oxidation ozone formation chemical mechanisms uncertainty analysis mechanism reduction and lumping 


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© Springer Science + Business Media B.V 2008

Authors and Affiliations

  • J. M. Pilling
    • 1
  1. 1.School of ChemistryUniversity of LeedsLeeds

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