Aerosol Activites

Aerosols and trace gases play a crucial role in the climate system, especially in the sensitive polar regions. In order to understand the detailed physical processes, we are investigating the following emerging questions in our work:

What are the main sources and seasonal variations of aerosols and trace gases in the polar regions? How do the frequency, distribution and properties of aerosols and trace gases in the polar regions change over time? What influence do aerosols and trace gases in the polar regions have on the local and global climate system? How do the properties and behaviour of aerosols and trace gases differ between the Arctic and Antarctic, and what impact does this have on climate models?

Our Researcher Group addresses these scientific questions through a series of observation platforms and specialised measurement techniques. At Neumayer Station III in the Antarctic, we carry out long-term observations in our aerosol and trace gas observatory, which provides important data on the composition of the atmosphere in the polar regions. We also carry out measurements on board commercial ships and sailing vessels using our self-developed portable aerosol and trace gas boxes.
With the Polar 5 and Polar 6 research aircraft, which we use in both polar regions, we also obtain vertical profiles of aerosol distribution. For detailed analysis of Miscellaneous atmospheric heights and the polar boundary layer, we have developed a unique measurement system that can be deployed under the aircraft to allow simultaneous sampling at two levels. By analysing snow samples from both polar regions for light-absorbing impurities, we link the atmospheric and cryospheric subsystems and gain insights into how surface albedo changes and accelerates ice/snow melt.

Our work is further enhanced by collaboration with leading research institutes. In this way, we bring together diverse expertise to deepen our understanding of polar aerosols, trace gases and their impact on climate.