EGU General Assembly 2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Dust aerosols’ mineralogy in the chemical transport model COSMO-MUSCAT during JATAC and comparison with lidar and in-situ data

Sofía Gómez Maqueo Anaya1, Dietrich Althausen1, Kerstin Schepanski2, Matthias Faust1, Bernd Heinold1, Ina Tegen1, Holger Baars1, Ronny Engelmann1, Anett Skupin1, Martin Radenz1, Albert Ansmann1, Birgit Hesse1, Ulla Wandinger1, Grisa Mocnik3, Eder Silva4, Elizandro Rodrigues4, Pericles Silva4, and Cordula Zenk5
Sofía Gómez Maqueo Anaya et al.
  • 1Leibniz Institute for Tropospheric Research, Leipzig, Germany
  • 2Free University of Berlin, Berlin, Germany
  • 3Research and Development Department, Aerosol d.o.o., Ljubljana, Slovenia
  • 4Ocean Science Centre Mindelo, Mindelo, Cape Verde
  • 5GEOMAR Helmholtz Centre for Ocean Research, Kiel, Germany

Mineral dust aerosols are composed from a complex assemblage of various minerals depending on the region they come from. Considering that minerals have their distinct physicochemical properties, differences on mineral dust aerosols climatic impact will arise as a consequence of distinct mineral content.

Chemical transport models typically assume that mineral dust aerosols have uniform composition, despite the known regional variations in the mineral components. This study adds mineralogical information to the mineral dust emission scheme used in the chemical transport model, COSMO-MUSCAT.

Here we show some steps of the inclusion of mineralogy to the emission scheme. Results of the simulated mineral dust aerosols are shown with their respective mineralogy from sources in Africa for an example case from the JATAC campaign in September 2021. The results of the simulated mineral dust aerosol are compared with lidar and in-situ data measured at Mindelo, Cape Verde. Furthermore, the comparison with the lidar retrieved vertical profiles at Mindelo, highlights a possible link between the mineral dust aerosol optical properties and the distinct minerals found within them.

How to cite: Gómez Maqueo Anaya, S., Althausen, D., Schepanski, K., Faust, M., Heinold, B., Tegen, I., Baars, H., Engelmann, R., Skupin, A., Radenz, M., Ansmann, A., Hesse, B., Wandinger, U., Mocnik, G., Silva, E., Rodrigues, E., Silva, P., and Zenk, C.: Dust aerosols’ mineralogy in the chemical transport model COSMO-MUSCAT during JATAC and comparison with lidar and in-situ data, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-15338,, 2023.

Supplementary materials

Supplementary material file

Comments on the supplementary material

to access the discussion