Source mechanisms and transport patterns of tropospheric bromine monoxide: findings from long-term multi-axis differential optical absorption spectroscopy measurements at two Antarctic stations

• Published in: Atmospheric Chemistry and Physics
• Main Authors: U. Frieß, K. Kreher, R. Querel, H. Schmithüsen, D. Smale, R. Weller, U. Platt
• Format: Article in Journal/Newspaper
• Language: English
• Published: Copernicus Publications 2023
• Subjects: Physics; QC1-999; Chemistry; QD1-999; Arctic; Antarctic; The Antarctic; Weddell Sea; Neumayer; Weddell; Ronne Ice Shelf; Arrival Heights; Antarc*; Antarctica; Filchner Ronne Ice Shelf; Filchner-Ronne Ice Shelf; Ice Sheet; Ice Shelf; Sea ice
• Online Access: https://doi.org/10.5194/acp-23-3207-2023; https://doaj.org/article/6332970f0c29429bbac08fe49bdf76d0

The presence of reactive bromine in polar regions is a widespread phenomenon that plays an important role in the photochemistry of the Arctic and Antarctic lower troposphere, including the destruction of ozone, the disturbance of radical cycles, and the oxidation of gaseous elemental mercury. The ch...