Articles | Volume 20, issue 11
Atmos. Chem. Phys., 20, 7103–7123, 2020
https://doi.org/10.5194/acp-20-7103-2020
Atmos. Chem. Phys., 20, 7103–7123, 2020
https://doi.org/10.5194/acp-20-7103-2020

Research article 16 Jun 2020

Research article | 16 Jun 2020

Variability and past long-term changes of brominated very short-lived substances at the tropical tropopause

Susann Tegtmeier et al.

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Cited articles

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Aschmann, J., Sinnhuber, B.-M., Chipperfield, M. P., and Hossaini, R.: Impact of deep convection and dehydration on bromine loading in the upper troposphere and lower stratosphere, Atmos. Chem. Phys., 11, 2671–2687, https://doi.org/10.5194/acp-11-2671-2011, 2011. 
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We investigate emissions of brominated gases from the ocean and their contribution to stratospheric ozone depletion. Once in the atmosphere, these gases usually break down in less than 6 months. Their impact on the ozone layer depends on the prevailing atmospheric circulation, since transport to the stratosphere requires uplift. We combine aircraft and ship observations with atmospheric modelling to analyse how, where, and when these gases are transported from the ocean into the stratosphere.
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