Publication Abstracts

Lohmann et al. 2001

Lohmann, U., R. Leaitch, L. Barrie, K. Law, Y. Yi, D. Bergman, C. Bridgeman, M. Chin, J. Christensen, R. Easter, J. Feichter, A. Jeuken, E. Kjellstrom, D. Koch, C. Land, P. Rasch, and G.-J. Roelofs, 2001: Comparison of the vertical distributions of sulfur species from models participated in the COSAM exercise with observations. Tellus, 53B, 646-672, doi:10.1034/j.1600-0889.2001.530508.x.

A comparison of large-scale models simulating atmospheric sulfate aerosols (COSAM) was conducted to increase our understanding of global distributions of sulfate aerosols and precursors. Earlier model comparisons focused on wet deposition measurements and sulfate aerosol concentrations in source regions at the surface. They found that different models simulated the observed sulfate surface concentrations mostly within a factor of two, but that the simulated column burdens and vertical profiles were very different amongst different models. In the COSAM exercise, one aspect is the comparison of sulfate aerosol and precursor gases above the surface. Vertical profiles of SO2, SO2-4, oxidants and cloud properties were measured by aircraft during the North Atlantic Regional Experiment (NARE) experiment in August/September 1993 off the coast of Nova Scotia and during the Second Eulerian Model Evaluation Field Study (EMEFSII), in central Ontario in March/April 1990. While no single model stands out as being best or worst, the general tendency is that those models simulating the full oxidant chemistry tend to agree best with observations although differences in transport and treatment of clouds are important as well.

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BibTeX Citation

@article{lo02000x,
  author={Lohmann, U. and Leaitch, R. and Barrie, L. and Law, K. and Yi, Y. and Bergman, D. and Bridgeman, C. and Chin, M. and Christensen, J. and Easter, R. and Feichter, J. and Jeuken, A. and Kjellstrom, E. and Koch, D. and Land, C. and Rasch, P. and Roelofs, G.-J.},
  title={Comparison of the vertical distributions of sulfur species from models participated in the COSAM exercise with observations},
  year={2001},
  journal={Tellus},
  volume={53B},
  pages={646--672},
  doi={10.1034/j.1600-0889.2001.530508.x},
}

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RIS Citation

TY  - JOUR
ID  - lo02000x
AU  - Lohmann, U.
AU  - Leaitch, R.
AU  - Barrie, L.
AU  - Law, K.
AU  - Yi, Y.
AU  - Bergman, D.
AU  - Bridgeman, C.
AU  - Chin, M.
AU  - Christensen, J.
AU  - Easter, R.
AU  - Feichter, J.
AU  - Jeuken, A.
AU  - Kjellstrom, E.
AU  - Koch, D.
AU  - Land, C.
AU  - Rasch, P.
AU  - Roelofs, G.-J.
PY  - 2001
TI  - Comparison of the vertical distributions of sulfur species from models participated in the COSAM exercise with observations
JA  - Tellus
VL  - 53B
SP  - 646
EP  - 672
DO  - 10.1034/j.1600-0889.2001.530508.x
ER  -

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