PhD position in Atmospheric Sciences (Trace Gas Observations)

Trace gases are important constituents of Earth’s atmosphere impacting on climate, the ozone layer and human health. In this project you will perform analysis of trace gas mixing ratio observations from the upper troposphere and lower stratosphere. You will mainly rely on data from the long-term passenger aircraft project IAGOS-CARIBIC, which deployed scientific instrumentation during regular passenger flights over more than a decade. The dataset has been used to derive climatologies of trace gases in the upper troposphere and lowermost stratosphere, and it was found to be largely representative for that purpose. In this project, you are going to focus on special events that are characterized by unusual trace gas mixing ratios, in particular long-lived greenhouse gases but also other tracers. The aim is to identify and characterize such events, understand their origin and the meteorological processes causing them, as well as their likelihood and impacts.