Atmospheric Chemistry and Physics www.atmos-chem-phys.net 1680-7316 1680-7324 6 12 2006 10.5194/acp-6-4617-2006 http://www.atmos-chem-phys.net/6/4617/2006/ http://www.atmos-chem-phys.net/6/4617/2006/acp-6-4617-2006.html http://www.atmos-chem-phys.net/6/4617/2006/acp-6-4617-2006.pdf 4617 4632 2006-10-12 Technical Note: An implementation of the dry removal processes DRY DEPosition and SEDImentation in the Modular Earth Submodel System (MESSy) A. Kerkweg akerkweg@mpch-mainz.mpg.de J. Buchholz L. Ganzeveld A. Pozzer H. Tost P. Jöckel Air Chemistry Department, Max-Planck Institute of Chemistry, P.O. Box 3060, 55020 Mainz, Germany We present the submodels DRYDEP and SEDI for the Modular Earth Submodel System (MESSy). Dry deposition of gases and aerosols is calculated within DRYDEP, whereas SEDI deals with aerosol particle sedimentation. Dry deposition velocities depend on the near-surface turbulence and the physical and chemical properties of the surface cover (e.g. the roughness length, soil pH or leaf stomatal exchange). The dry deposition algorithm used in DRYDEP is based on the big leaf approach and is described in detail within this Technical Note. The sedimentation submodel SEDI contains two sedimentation schemes: a simple upwind zeroth order scheme and a first order approach. Batjes, N. H.: A global data set of soil pH properties, Tech. Rep. 27, Int. Soil Ref. and Inf. Cent., Wageningen, Netherlands, 1995. Buchholz, J.: Simulations of Physics and Chemistry of Polar Stratospheric Clouds with a General Circulation Model, Ph.D. thesis, Johannes Gutenberg-Universität, Fachbereich Physik, http://nbn-resolving.de/urn/resolver.pl?urn=urn:nbn:de:hebis:77-8187, 2005. Ganzeveld, L. and Lelieveld, J.: Dry deposition parameterization in a chemistry general circulation model and its influence on the distribution of reactive trace gases, J. Geophys. Res., 100, 20 999–21 012, 1995. Ganzeveld, L., Lelieveld, J., and Roelofs, G.-J.: A dry deposition parameterization for sulfur oxides in a chemistry and general circulation model, J. Geophys. Res., 103, 5679–5694, 1998. Ganzeveld, L., Lelieveld, J., Dentener, F., Krol, M., and Bouwman, A. J.: Global soil-biogenic NO_x emissions and the role of canopy processes, J. Geophys. Res., 107, 4298, doi:10.1029/2001JD001289, 2002. Ganzeveld, L., Aardenne, J., Butler, T., Lawrence, M., Metzger, S., Stier, P., Zimmermann, P., and Lelieveld, J.: Anthropogenic and natural offline emissions and the online EMission and dry DEPosition submodel EMDEP of the Modular Earth Submodel System (MESSy), Atmos. Chem. Phys. Discuss., 6, 5457–5483, 2006. Hummelshøj, P., Jensen, N., and Larson, S.: Precipitation scavenging and atmosphere-surface exchange, chap. Particle dry deposition to as sea surface, 820–840, Hemisphere Publishing Corporation, Washington, 1992. Jöckel, P., Sander, R., Kerkweg, A., Tost, H., and Lelieveld, J.: Technical Note: The Modular Earth Submodel System (MESSy) – a new approach towards Earth System Modeling, Atmos. Chem. Phys., 5, 433–444, 2005. Jöckel, P.: Technical note: Recursive rediscretisation of geo-scientific data in the Modular Earth Submodel System (MESSy), Atmos. Chem. Phys., 6, 3557-3562, 2006. Olson: World ecosystems (WE1.4): Digital ratser data on a 10 min geographic 1080 x 2160 grid square, edited by: NOAA Natl. Geophsys. Data Cent. Boulder Colorado, global ecosystem database version 1.0: disc a edn., 1992. Pozzer, A., Jöckel, P., Sander, R., Ganzeveld, L., and Lelieveld, J.: Technical Note: The MESSy-submodel AIRSEA calculating the air-sea exchange of chemical species, Atmos. Chem. Phys. Discuss., 6, 8189–8214, 2006. Pruppacher, H. and Klett, J.: Microphysics of Clouds and Precipitation, 2nd edition, Kluwer, Dordrecht, 954 pp., 1997. Roeckner, E., Arpe, K., Bengtsson, L., Christoph, M., Claussen, M., Dümenil, L., Esch, M., Giogetta, M., Schlese, U., and Schulzweida, U.: The atmospheric general circulation model ECHAM-4: Model description and simulation of the present-day climate, Tech. Rep. 218, Max-Planck-Inst. für Meteorologie, Hamburg, Germany, 1996. Slinn, S. and Slinn, W.: Predictions for Particle Deposition on Natural Waters, Atmos. Environ., 14, 1013–1016, 1980. Stier, P., Feichter, J., Kinne, S., Kloster, S., Vignati, E., Wilson, J., Ganzeveld, L., Tegen, I., Werner, M., Balkanski, Y., Schulz, M., and Boucher, O.: The Aerosol-Climate Model ECHAM5-HAM, Atmos. Chem. Phys., 5, 1125–1156, 2005. Stull, R. B.: An Introduction to Boundary Layer Meteorology, Kluwer Academic Publishers, 1988. Wesely, M.: Parameterization of the surface resistances to gaseous dry depposition in regional-scale numerical models, Atmos. Environ., 23, 1293–1304, 1989. Wesely, M. and Hicks, B.: A review of the current status of knowledge on dry deposition, Atmos. Environ., 34, 2261–2282, 2000.