Comprehensive sensitivity analysis of an SO2 deposition model for three measurement sites: Consequences for SO2 deposition fluxes |
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| Institution: | 1. Department of Earth and Planetary Sciences, Johns Hopkins University, Baltimore, MD, USA;2. Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, USA;3. Department of Space Studies, Southwest Research Institute, Boulder, CO, USA;4. Chemical Sciences Division, National Oceanic and Atmospheric Administration, Earth System Research Laboratory, Boulder, CO, USA;5. Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO, USA;1. Soil Conservation Engineering Laboratory, Agronomy Department, Rural Federal of Pernambuco University (UFRPE), Recife, PE, Brazil;2. Biological and Agricultural Engineering Department, Civil and Environmental Engineering Department, Texas A & M University, College Station, TX, USA |
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| Abstract: | A parameterization for the dry deposition of SO2 is evaluated by means of four statistical sensitivity studies using a sampling-based approach to sensitivity analysis. Measurements over a heathland, grassland and coniferous forest are used to identify those meteorological and vegetation-specific factors which drive the deposition component of the model (model-based studies) and which are most important in the determination of model-measurement discrepancies. Sensitivity indices and scatter plots for monthly average fluxes indicate that the dominant factors are for most months related to non-stomatal components of the deposition flux. |
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