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Apr. 21, 2015 - 15:00
Michael C. Pitts
NASA Langley Research Center, Hampton, Virginia, USA

8+ Years of CALIPSO PSC observations: An evolving climatology


Apr. 23, 2015 - 15:00
Daniel Rieger, Carolin Walter

1. Applications of ICON-ART (Daniel Rieger) 2. Modelling Volcanic Gases and Aerosols (Carolin Walter)

Apr. 28, 2015 - 15:00
Prof. Dr. Hartmut Herrmann

Tropospheric multiphase chemistry: Laboratory, modelling and field studies

Apr. 30, 2015 - 15:00

May. 07, 2015 - 15:00
Hendrik Feldmann, Hilke Lentink, Lisa-Ann Quandt

1. Regional Decadal Predictions for Europe (Hendrik Feldmann), 2. The extratropical transition of Typhoon Choi-Wan (2009), a modeling study (Hilke Lentink), 3. Forecast variability of blocking during the Russian Heat Wave in 2010 (Lisa-Ann Quandt)

May. 21, 2015 - 15:00
Christian Barthlott, Konrad Deetz, Manuel Schmidberger

1. COSMO simulations for Pentecost 2014 (Christian Barthlott), 2. Simulations for DACCIWA with COSMO-ART (Konrad Deetz), 3. Hail hazard and hail risk modelling for Germany (Manuel Schmidberger)

May. 28, 2015 - 15:00

Jun. 11, 2015 - 15:00
Florian Ehmele, Susanna Mohr

1. Projekt FLORIS-SV (Florian Ehmele), 2. Projekt ConWingG - konvektive Starkwindereignisse (Susanna Mohr)

Jun. 18, 2015 - 15:00
David Piper, Elody Fluck

Titel folgt (David Piper), Titel folgt (Elody Fluck)

Jun. 25, 2015 - 15:00
Jutta Metzger, Natalie Laube, Marianne Uhlig

1. Evaporation Measurements at the Dead Sea (Jutta Metger), 2. Titel folgt (Natalie Laube), 3. Titel folgt (Marianne Uhlig)

Jul. 02, 2015 - 15:00

Jul. 09, 2015 - 15:00
Martin Kohler, Marlon Maranan, Bianca Adler

1. Titel folgt (Martin Kohler), 2. Current status of DACCIWA and METCRAX II analysis (Bianca Adler), 3. Titel folgt (Marlon Maranan)


Aerosols, Clouds, and Atmospheric Chemistry

Welcome to the division "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 field campaigns
  • performs numerical modelling of atmospheric aerosol processes

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



Ice nucleation by cellulose aerosol

Searching for the ice nucleating particle (INP) types in the atmosheric aerosol is still a major challenge of aerosol-cloud-climate research. Scientists from the Karlsruhe Institute of Technology, the Meteorological Research Institute in Tsukuba, Japan, and the University of Bielefeld have identified cellulose as an important source of atmospheric INPs, as reported  in Nature Geoscience 8, 273-277 (2015) .

International Symposium on Ultrafine Particles

The effects of ultrafine particles, the smallest constituents of airborne particulate matter, on air quality, atmospheric processes, climate, and human health are by far not finally investigated to proven evidence. The 5th EFCA Ultrafine Particles Symposium  will reflect the most recent scientific progress in the field and aims to contribute to the dialogue with policymakers in Europe.  The symposium takes place on May 4 - 5 in Brussels, Belgium. It is co-organized by KIT and chaired by the head of IMK-AAF, Prof. Thomas Leisner.

Research Infrastructure Project AIDA-2

The ongoing AIDA-2 project includes the construction of a new lab building, the renovation of the AIDA facility, the installation of an aerosol mass spectrometry lab, and the construction of a novel dynamic cloud chamber. Building construction and AIDA renovation are making good progress. Reopening of the AIDA facility is planned for September after the installation of a new liquid gas supply system.

contour plot
Aerosol Simulation Web Site Released by IMK-AAF A web based version of the extensively validated detailed numerical aerosol process model COSIMA-F has been made freely available to the public. This code describes the structural properties and dynamical evolution of  ramified aggregates, e.g. freshly emitted soot, based on fractal scaling laws. However, it can also be operated like a conventional aerosol behaviour code when dealing with compact aerosol particles. Several entirely editable default scenarios are available. For more information or conducting your own simulations please visit the COSIMA homepage