At the time of the ASCOS expedition, I worked as a postdoc at the Department of Meteorology at Stockholm University. Now, I am with the Bayreuth Center of Ecology and Environmental Research at the University of Bayreuth, Germany. My research interests are in experimental aerosol chemistry and physics, mainly aerosol mass spectrometry and aerosol flux measurements. During ASCOS, I was involved in various activities including the open lead flux system, spray sampling/artificial bubbling, and the helicopter profiling measurements.