Journal Highlights

Snow Melt Onset Hinders Bromine Monoxide Heterogeneous Recycling in the Arctic

Editor’s Highlight—


This paper correlates the factors that control the seasonal dependence of bromine monoxide in the Arctic springtime boundary layer with the onset of snow melt. This is the first field evidence to show that the physical state of the surfaces where reaction take place has an effect on reaction rates and products. When the surfaces are ice, reactions take place; when the ice surfaces melt, no detectable reaction occurs. This has major bearing on our ability to understand and model snow chemistry.