Articles | Volume 22, issue 16
Atmos. Chem. Phys., 22, 10657–10676, 2022
https://doi.org/10.5194/acp-22-10657-2022

Special issue: Atmospheric ozone and related species in the early 2020s:...

Atmos. Chem. Phys., 22, 10657–10676, 2022
https://doi.org/10.5194/acp-22-10657-2022
Research article
23 Aug 2022
Research article | 23 Aug 2022

Atmospheric impacts of chlorinated very short-lived substances over the recent past – Part 1: Stratospheric chlorine budget and the role of transport

Ewa M. Bednarz et al.

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Cited articles

Bednarz, E. M.: Data used in: Atmospheric impacts of chlorinated very short-lived substances over the recent past – Part 1: Stratospheric chlorine budget and the role of transport, by: Bednarz et al. (2022) (1.0) Zenodo [data set], https://doi.org/10.5281/zenodo.6993693, 2022. 
Bednarz, E. M., Hossaini, R., Abraham, N. L., and Chipperfield, M. C.: Description and evaluation of the new UM-UKCA Double Extended Stratospheric-Tropospheric (DEST vn1.0) scheme for comprehensive modelling of halogen chemistry in the stratosphere, in preparation, 2022. 
Bernath, P. and Fernando, A. M.: Trends in stratospheric HCl from the ACE satellite mission, J. Quant. Spectrosc. Ra., 217, 126–129, https://doi.org/10.1016/j.jqsrt.2018.05.027, 2018. 
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Short summary
Atmospheric impacts of chlorinated very short-lived substances (Cl-VSLS) over the first two decades of the 21st century are assessed using the UM-UKCA chemistry–climate model. Stratospheric input of Cl from Cl-VSLS is estimated at ~130 ppt in 2019. The use of model set-up with constrained meteorology significantly increases the abundance of Cl-VSLS in the lower stratosphere relative to the free-running set-up. The growth in Cl-VSLS emissions significantly impacted recent HCl and COCl2 trends.
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