ACPD Atmospheric Chemistry and Physics Discussions ACPD 1680-7375 Copernicus GmbH Göttingen, Germany 10.5194/acpd-6-5457-2006 Technical Note: Anthropogenic and natural offline emissions and the online EMissions and dry DEPosition submodel EMDEP of the Modular Earth Submodel system (MESSy) Ganzeveld L. N. 1 van Aardenne J. A. 2 Butler T. M. 1 Lawrence M. G. 1 Metzger S. M. 1 Stier P. 3 Zimmermann P. 1 Lelieveld J. 1 Max-Planck Institute for Chemistry, Department of Atmospheric Chemistry, Joachim-Becher-Weg 27, 55128, Mainz, P.O. Box 3060, 55020 Mainz, Germany Joint Research Centre, Institute for Environment and Sustainability, Climate Change Unit, Ispra (Va), Italy California Institute of Technology, Pasadena, CA, USA 27 06 2006 6 3 5457 5483 This is an open-access article ditributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. This article is available from http://www.atmos-chem-phys-discuss.net/6/5457/2006/acpd-6-5457-2006.html The full text article is available as a PDF file from http://www.atmos-chem-phys-discuss.net/6/5457/2006/acpd-6-5457-2006.pdf

We present the online calculated Earth's surface trace gas and aerosol emissions and dry deposition in the Modular Earth Submodel System (MESSy) submodel EMDEP as well as the currently applied anthropogenic and natural emissions inventories. These inventories, being read-in by the MESSy submodel OFFLEM, include the industrial, fossil fuel, agricultural and biomass burning emissions considering emission height profiles as a function of the source category based on the EDGAR v3.2 fast track 2000 inventory. Terrestrial and marine emissions of a selection of trace gases and aerosols are calculated online in EMDEP using climate model parameters such as wind speed, temperature and land cover and land use parameters. The online dry deposition calculation includes gases and aerosols, where the default selection for the trace gases for the dry deposition scheme can be easily extended using a commonly applied method based on trace gas solubility and reactivity. In general, the simulated global annual emissions agree with previously reported inventories, although differences exist, partly dependent on the applied model resolution. A high sensitivity of the simulated dry deposition to the applied emission height profiles stresses the importance of a realistic and consistent representation of the spatial and temporal variability in surface exchange processes in Earth system models.