Atmospheric Aerosol Research (IMK-AAF)

Welcome to the department "Atmospheric Aerosol Research" of the Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology. Our research focuses on the role of aerosols in the climate system, the hydrological cycle, and the environment.

  • operates the internationally renowned AIDA aerosol and cloud simulation chamber
  • runs laboratories for aerosol and cloud research
  • participates in ground-based and aircraft field campaigns around the world

The head of the division, Thomas Leisner, is professor at the Institute of Environmental Physics, University of Heidelberg



AIDA_chamberKIT/Markus Breig
Helmholtz Association green lights interdisciplinary SARS-CoV-2 aerosol consortium CORAERO

The CORAERO consortium will research the spread of SARS-CoV-2 and other viruses through bio-aerosol with the goal to develop new technologies for virus detection and inhibition.

pic_press_PINE_KoseticeKIT/ Dr. Ottmar Möhler
PINE monitors ice-nucleating particles at the Košetice Observatory (CZ)

End of April 2021, the mobile cloud expansion experiment PINE started a two months period for continuous measurements of ice-nucleating particles (INPs) at the Košetice National Atmospheric Observatory in the Czech Republic.

Virtual Access to the AIDA facility

Many scientists from around the world have used the opportunity to virtually access the AIDA facility to do measurement campaigns in close collaboration with the local team. These activities are supported by the EU projects EUROCHAMP2020 and ATMO-ACCESS and allow use of the facility even if travelling is not possible.

news_thermographyKIT/ Kleinheins et al.
Cloud droplets under pressure

The pressure in freezing cloud droplets rises until the ice shell cracks. These repetitive cracks are the source for small ice splinters which in turn may freeze further cloud droplets. With the help of thermography, internal pressures up to 170 bar could be detected.

SDE_lidarDr. Harald Saathoff
Saharan dust plumes studied at KIT

KIT scientists study the evolution of Saharan dust plumes near Karlsruhe in the atmosphere and at the ground with the goal to determine their properties and to validate forecast models.

news_pic_realicecrytsalDBKIT/ Fritz Waitz
Real ice crystal images publicly available

An open access database provides scientists and general public information on individual atmospheric ice crystals that were captured in their native environment using research aircrafts.