ICON-ART, where ART stands for Aerosols and Reactive Trace gases, is an extension of ICON (ICOsahedral Nonhydrostatic model; developed at the German Weatherservice (DWD) and the Max-Plank-Institute of Meteorology Hamburg (MPI-M)) to enable the simulation of gases, aerosol particles and related feedback processes in the atmosphere. In its current stage, ICON-ART is capable of simulating mineral dust and sea salt aerosol and the interactions of these aerosol types with clouds. Additionally, in a joint development with German Weatherservice (DWD), the dispersion of volcanic ash particles and radioactive tracers has been made available for operational forecast. The Global Modelling Group (MOD) of IMK-ASF has introduced ozone depleting short-lived trace gases in the stratosphere, a linearized ozone chemistry and a photolysis module. For a further description of ICON-ART, see

Rieger et al.: ICON-ART 1.0 - a new online coupled model system from the global to regional scale (2015).



To receive an ICON-ART licence, please contact Bernhard Vogel.

Application Examples

Acetone volume mixing ratio due to biogenic emissions from MEGAN-MACC in ICON-ART with resolution R2B06 at model level 84 (about 500 m above surface).



























SO2 cloud of the Raikoke eruption in June 2019, simulated with ICON-ART. The isosurface of a constant gas concentration of 100 µg per kg air is displayed in the animation.




Mass mixing ratio of volcanic ash originating from an artificial volcano eruption in Iceland lasting for 21 hours in about    2400 m.  

Vertically integrated aerosol optical depth of mineral dust aerosol in April 2014.





Training course for the model system ICON-ART

The 5th training course for the model system ICON-ART was held from April 8 to April 12, 2019 in the Hessian city Langen. It was organized in collaboration with the Institute for Meteorology and Climate Research (IMK) of the Karlsruhe Institute of Technology (KIT) and the German Weather Service (DWD). The participants provided an insight into the weather prediction model ICON and performed initial simulations. They got information about the importance of aerosols (small liquid or solid particles suspended in the air) for weather patterns, aviation and climate in theory and practice.

The participants were able to perform simulations with ICON-ART. They calculated the dispersion of arbitrary single sources, volcanic ash plumes by virtual eruption of different volcanoes, a simple ozone chemistry and a accidental release. Furthermore, the spread of sea salt particles could be simulated. Sea salt has a large share of the global aerosol amount and is assumed, among others, to play an important role for the formation of clouds.

We are pleased to repeat this course next year. The ICON-ART team Christopher Diekmann, Sven Werchner and Dr. Heike Vogel from KIT together with Dipl.-Met. Jochen Förstner from DWD is led by Dr. Bernhard Vogel. The training course was supported by Dr. Daniel Rieger, Dr. Florian Prill, Dr. Daniel Reinert from DWD.