edu.ucar.opensky::articles:6865 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-26T15:32:54.909774 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7cn7446 The effect of harmonized emissions on aerosol properties in global models - an AeroCom experiment 2007-08-30T00:00:00Z publication https://n2t.org/ark:/85065/d7cn7446 https://doi.org/10.5194/acp-7-4489-2007 Textor, C. author Schulz, M. author Guibert, S. author Kinne, S. author Balkanski, Y. author Bauer, S. author Berntsen, T. author Berglen, T. author Boucher, O. author Chin, M. author Dentener, F. author Diehl, T. author Feichter, J. author Fillmore, David W. author Ginoux, P. author Gong, S. author Grini, A. author Hendricks, J. author Horowitz, Larry W. author Huang, P. author Isaksen, I. author Iversen, T. author Kloster, S. author Koch, D. author Kirkevaeg, A. author Kristajansson, J. author Krol, M. author Lauer, A. author Lamarque, Jean-François author Liu, X. author Montanaro, V. author Myhre, G. author Penner, J. author Pitari, G. author Reddy, M. author Seland, Ø. author Stier, P. author Takemura, T. author Tie, Xue X. author UCAR/NCAR - Library publisher The effects of unified aerosol sources on global aerosol fields simulated by different models are examined in this paper. We compare results from two AeroCom experiments, one with different (ExpA) and one with unified emissions, injection heights, and particle sizes at the source (ExpB). Surprisingly, harmonization of aerosol sources has only a small impact on the simulated inter-model diversity of the global aerosol burden, and consequently global optical properties, as the results are largely controlled by model-specific transport, removal, chemistry (leading to the formation of secondary aerosols) and parameterizations of aerosol microphysics (e.g., the split between deposition pathways) and to a lesser extent by the spatial and temporal distributions of the (precursor) emissions. The burdens of black carbon and especially sea salt become more coherent in ExpB only, because the large ExpA diversities for these two species were caused by a few outliers. The experiment also showed that despite prescribing emission fluxes and size distributions, ambiguities in the implementation in individual models can lead to substantial differences. These results indicate the need for a better understanding of aerosol life cycles at process level (including spatial dispersal and interaction with meteorological parameters) in order to obtain more reliable results from global aerosol simulations. This is particularly important as such model results are used to assess the consequences of specific air pollution abatement strategies. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Copyright Author(s) 2007. This work is distributed under the Creative Commons Attribution 3.0 License. None eng geoscientificInformation