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Geoscientific Model Development An interactive open-access journal of the European Geosciences Union
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Volume 12, issue 1
Geosci. Model Dev., 12, 541-579, 2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue: The Modular Earth Submodel System (MESSy) (ACP/GMD inter-journal...

Geosci. Model Dev., 12, 541-579, 2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Model description paper 01 Feb 2019

Model description paper | 01 Feb 2019

Global aerosol modeling with MADE3 (v3.0) in EMAC (based on v2.53): model description and evaluation

J. Christopher Kaiser1,a, Johannes Hendricks1, Mattia Righi1, Patrick Jöckel1, Holger Tost2, Konrad Kandler3, Bernadett Weinzierl4,1,5, Daniel Sauer1,5, Katharina Heimerl4,1,5, Joshua P. Schwarz6, Anne E. Perring6,7,b, and Thomas Popp8 J. Christopher Kaiser et al.
  • 1Deutsches Zentrum für Luft- und Raumfahrt (DLR), Institut für Physik der Atmosphäre, Oberpfaffenhofen, Germany
  • 2Institute for Atmospheric Physics, Johannes Gutenberg University of Mainz, Mainz, Germany
  • 3Institut für Angewandte Geowissenschaften, Technische Universität Darmstadt, Darmstadt, Germany
  • 4University of Vienna, Faculty of Physics, Aerosol Physics and Environmental Physics, Vienna, Austria
  • 5Ludwig-Maximilians-Universität München, Meteorologisches Institut, Munich, Germany
  • 6NOAA Earth System Research Laboratory, Boulder, CO, USA
  • 7Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, USA
  • 8Deutsches Zentrum für Luft- und Raumfahrt (DLR), Deutsches Fernerkundungsdatenzentrum, Oberpfaffenhofen, Germany
  • anow at: fidion GmbH, Würzburg, Germany
  • bnow at: Department of Chemistry, Colgate University, Hamilton, NY, USA

Abstract. Recently, the aerosol microphysics submodel MADE3 (Modal Aerosol Dynamics model for Europe, adapted for global applications, third generation) was introduced as a successor to MADE and MADE-in. It includes nine aerosol species and nine lognormal modes to represent aerosol particles of three different mixing states throughout the aerosol size spectrum. Here, we describe the implementation of the most recent version of MADE3 into the ECHAM/MESSy Atmospheric Chemistry (EMAC) general circulation model, including a detailed evaluation of a 10-year aerosol simulation with MADE3 as part of EMAC.

We compare simulation output to station network measurements of near-surface aerosol component mass concentrations, to airborne measurements of aerosol mass mixing ratio and number concentration vertical profiles, to ground-based and airborne measurements of particle size distributions, and to station network and satellite measurements of aerosol optical depth. Furthermore, we describe and apply a new evaluation method, which allows a comparison of model output to size-resolved electron microscopy measurements of particle composition. Although there are indications that fine-mode particle deposition may be underestimated by the model, we obtained satisfactory agreement with the observations. Remaining deviations are of similar size to those identified in other global aerosol model studies.

Thus, MADE3 can be considered ready for application within EMAC. Due to its detailed representation of aerosol mixing state, it is especially useful for simulating wet and dry removal of aerosol particles, aerosol-induced formation of cloud droplets and ice crystals as well as aerosol–radiation interactions. Besides studies on these fundamental processes, we also plan to use MADE3 for a reassessment of the climate effects of anthropogenic aerosol perturbations.

Publications Copernicus
Short summary
The implementation of the aerosol microphysics submodel MADE3 into the global atmospheric chemistry model EMAC is described and evaluated against an extensive pool of observational data, focusing on aerosol mass and number concentrations, size distributions, composition, and optical properties. EMAC (MADE3) is able to reproduce main aerosol properties reasonably well, in line with the performance of other global aerosol models.
The implementation of the aerosol microphysics submodel MADE3 into the global atmospheric...