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

Frieß, Udo; Kreher, Karin; Querel, Richard; Schmithüsen, Holger; Smale, Dan; Weller, Rolf; Platt, Ulrich

doi:https://doi.org/10.5194/acp-23-3207-2023

Articles | Volume 23, issue 5

https://doi.org/10.5194/acp-23-3207-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-23-3207-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 5

Research article

|

10 Mar 2023

Research article |

| 10 Mar 2023

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

Udo Frieß, Karin Kreher, Richard Querel, Holger Schmithüsen, Dan Smale, Rolf Weller, and Ulrich Platt

Supplement

https://doi.org/10.5194/acp-23-3207-2023-supplement

Data sets

Vertical profiles of BrO and aerosols from MAX-DOAS measurements at Neumayer Station Udo Frieß https://doi.org/10.1594/PANGAEA.946295

Vertical profiles of BrO and aerosols from MAX-DOAS measurements at Arrival Heights Udo Frieß https://doi.org/10.1594/PANGAEA.948027

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Short summary

Reactive bromine compounds, emitted by the sea ice during polar spring, play an important role in the atmospheric chemistry of the coastal regions of Antarctica. We investigate the sources and impacts of reactive bromine in detail using many years of measurements at two Antarctic sites located at opposite sides of the Antarctic continent. Using a multitude of meteorological observations, we were able to identify the main triggers and source regions for reactive bromine in Antarctica.