Wilka, C, Shah, K, Stone, K et al. (5 more authors) (2018) On the Role of Heterogeneous Chemistry in Ozone Depletion and Recovery. Geophysical Research Letters, 45 (15). pp. 7835-7842. ISSN 0094-8276
Abstract
We demonstrate that identification of stratospheric ozone changes attributable to ozone depleting substances and actions taken under the Montreal Protocol requires evaluation of confounding influences from volcanic eruptions. Using a state‐of‐the‐art chemistry‐climate model, we show that increased stratospheric aerosol loading from volcanic eruptions after 2004 impeded the rate of ozone recovery post‐2000. In contrast, eruptions increased ozone loss rates over the depletion era from 1980 to 1998. We also present calculations without any aerosol chemistry to isolate contributions from gas‐phase chemistry alone. This study reinforces the need for accurate information regarding stratospheric aerosol loading when modeling ozone changes, particularly for the challenging task of accurately identifying the early signs of ozone healing distinct from other sources of variability.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2018, American Geophysical Union. All Rights Reserved. Reproduced in accordance with the publisher's self-archiving policy. |
Keywords: | ozone depletion; ozone recovery; stratosphere; heterogeneous chemistry; volcanic aerosols |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > National Centre for Atmos Science (NCAS) (Leeds) |
Funding Information: | Funder Grant number NERC No External Ref |
Depositing User: | Symplectic Publications |
Date Deposited: | 23 Jul 2018 10:51 |
Last Modified: | 23 Jan 2019 01:38 |
Status: | Published |
Publisher: | American Geophysical Union |
Identification Number: | 10.1029/2018GL078596 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:133604 |