Document Type

Abstract

Publication Date

2018

Publication Title

Geophysical Research Abstracts

Volume

20

Pages

EGU2018-13620

Conference Name

EGU General Assembly 2018, 8-13 April 2018, Vienna, Austria

Abstract

[Introduction] Chlorinated very short-lived substances (VSLS), such as dichloromethane (CH2CL2), chloroform (CHCl3) and perchloroethylene (C2Cl4) constitute a small, but growing source of stratospheric chlorine (e.g. WMO, 2014). High-altitude aircraft observations provide some constraint on the stratospheric source gas injection of chlorine from these compounds, though product gas injection - from VSLS-derived phosgene and HCl produced in the troposphere - is uncertain. Furthermore, in addition to an overall paucity of atmospheric VSLS observations, the impact of VSLS growth on stratospheric composition trends in the recent past (e.g. ozone, HCl) remains poorly constrained.

Rights

© The Authors 2018.

Published under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) License.

Original Publication Citation

Hossaini, R., Chipperfield, M., Bernath, P., Fernando, A., Dhomse, S., & Feng, W. (2018). Stratospheric ozone and HCl trends (2000-2016): How significant is recent growth in chlorinated very short-lived substances? Geophysical Research Abstracts, 20, EGU2018-13620. European Geosciences Union.

ORCID

0000-0002-1255-396X (Bernath)

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