Journal of Atmospheric Chemistry

, Volume 37, Issue 1, pp 29–52

Development and Intercomparison of Condensed Isoprene Oxidation Mechanisms for Global Atmospheric Modeling

  • Ulrich Pöschl
  • Rolf von Kuhlmann
  • Nathalie Poisson
  • Paul J. Crutzen
Article

DOI: 10.1023/A:1006391009798

Cite this article as:
Pöschl, U., von Kuhlmann, R., Poisson, N. et al. Journal of Atmospheric Chemistry (2000) 37: 29. doi:10.1023/A:1006391009798

Abstract

A new condensed isoprene oxidation mechanism forglobal atmospheric modeling (MIM) was derived from ahighly detailed master chemical mechanism (MCM). In abox model intercomparison covering a wide range ofboundary layer conditions the MIM was compared withthe MCM and with five other condensed mechanisms, someof which have already been used in global modelingstudies of nonmethane hydrocarbon chemistry. Theresults of MCM and MIM were generally in goodagreement, but the other tested mechanisms exhibitedsubstantial differences relative to the MCM as well asrelative to each other. Different formation yields,reactivities and degradation pathways of organicnitrates formed in the course of isoprene oxidationwere identified as a major reason for the deviations.The relevance of the box model results for chemistrytransport models is discussed, and the need for avalidated reference mechanism and for an improvedrepresentation of isoprene chemistry in global modelsis pointed out.

isoprene oxidation global atmospheric modeling condensed chemical mechanism 

Copyright information

© Kluwer Academic Publishers 2000

Authors and Affiliations

  • Ulrich Pöschl
    • 1
  • Rolf von Kuhlmann
    • 1
  • Nathalie Poisson
    • 1
  • Paul J. Crutzen
    • 1
  1. 1.Department of Atmospheric ChemistryMax-Planck-Institute for ChemistryMainzGermany

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