#23 Topic: Thermal stratification, advection, and vertical mixing in Arctic boundary layers
Lecturer: Holger Siebert
Date: Monday, December 5, 2022 10:00 – 11:00 a.m.

On the one hand, Arctic boundary layers are often thermally stably stratified, which hinders effective vertical energy and mass exchange; on the other hand, advection at higher altitudes often plays an important role in the balance equation of e.g. moisture or aerosol, especially in the Arctic.  The central question in this context is: “How can air masses with their specific properties advected in the upper boundary layer become significant for the layer near the ground?” In this talk, I will present and discuss how vertical (turbulent) exchange can occur in stable environments and what role low-level jets can play in this context.