Articles | Volume 17, issue 5
Atmos. Chem. Phys., 17, 3401–3421, 2017
https://doi.org/10.5194/acp-17-3401-2017
Atmos. Chem. Phys., 17, 3401–3421, 2017
https://doi.org/10.5194/acp-17-3401-2017

Research article 09 Mar 2017

Research article | 09 Mar 2017

Bromine atom production and chain propagation during springtime Arctic ozone depletion events in Barrow, Alaska

Chelsea R. Thompson et al.

Data sets

OASIS 2009 campaign Artic Data Center https://arcticdata.io

Location information and pictures of the OASIS Barrow field intensive Spring 2009 NCAR EOL Data https://doi.org/10.5065/D6CJ8BM3

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Short summary
The generally accepted mechanism leading to ozone depletion events in the Arctic assumes efficient gas-phase recycling of bromine atoms, such that the rate of ozone depletion has often been estimated as the rate that Br atoms regenerate through gas-phase BrO + BrO and BrO + ClO reactions. Using a large suite of data from the OASIS2009 campaign, our modeling results show that the gas-phase regeneration of Br is less efficient than expected and that heterogeneous recycling on surfaces is critical.
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