The New Particle Formation, led by Dr. Birgit Wehner,  investigates the formation of tiny aerosol particles from precursor gases of natural origin and their transport. This phenomenon can be observed in a wide variety of environments, such as the Arctic, marine boundary layers, and in the vicinity of clouds. The second focus is on the vertical transport of newly formed particles and their exchange at interfaces, such as the ocean-atmosphere interface. The aim of our research is to quantify the influence of individual particle sources on the aerosol budget in different regions and to estimate how effective the vertical exchange of particles is and what role they can play in cloud formation. In addition to ground-based measurement methods, a variety of flying platforms are used, such as unmanned aerial systems (UAS), tethered balloons, and a helicopter-borne platform.