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Characteristics of an ozone deposition module II: Sensitivity analysis

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JournalWater, Air, & Soil Pollution
DatePublished - Feb 2003
Issue number1-4
Volume143
Number of pages15
Pages (from-to)123-137
Original languageEnglish

Abstract

An ozone deposition module is currently being developed which will allow the estimation of stomatal fluxes of ozone into a number of vegetation types. This model is designed to be linked into a regional chemical-transport model for use within the European Monitoring and Evaluation Programme (EMEP), to provide information on possible risks to vegetation across Europe. This paper investigates the sensitivity of this model to some of the important input parameters, for two land-cover classes (temperate coniferous forests, temperate cereals). Of the factors contributing to the stomatal conductance considered within this study, those controlling soil moisture seem to be the biggest source of uncertainty. As ozone damage is believed to be driven by flux into the leaf rather than by ambient concentrations, this study suggests that flux modelling may be a practical alternative to the use of the AOT40 concept which is currently used to guide assessments of vegetation risk.

    Research areas

  • ozone deposition, stomatal flux, resistance model, sensitivity analysis, VEGETATION, EXPOSURE, EUROPE, AOT40

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