Montreal Protocol's impact on the ozone layer and climate
It is now recognized and confirmed that the ozone layer shields the biosphere from dangerous solar UV radiation and is also important for the global atmosphere and climate. The observed massive ozone depletion forced the introduction of limitations on the production of halogen-containing ozone-deple...
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ftcopernicus:oai:publications.copernicus.org:acpd107367 2023-05-15T18:17:54+02:00 Montreal Protocol's impact on the ozone layer and climate Egorova, Tatiana Sedlacek, Jan Sukhodolov, Timofei Karagodin-Doyennel, Arseniy Zilker, Franziska Rozanov, Eugene 2022-11-10 application/pdf https://doi.org/10.5194/acp-2022-730 https://acp.copernicus.org/preprints/acp-2022-730/ eng eng doi:10.5194/acp-2022-730 https://acp.copernicus.org/preprints/acp-2022-730/ eISSN: 1680-7324 Text 2022 ftcopernicus https://doi.org/10.5194/acp-2022-730 2022-11-14T17:22:41Z It is now recognized and confirmed that the ozone layer shields the biosphere from dangerous solar UV radiation and is also important for the global atmosphere and climate. The observed massive ozone depletion forced the introduction of limitations on the production of halogen-containing ozone-depleting substances (hODS) by the Montreal Protocol and its Amendments (MPA). Further research was aimed at analyzing the role played by the Montreal Protocol to increase public awareness of its necessity. In this study, we evaluate the benefits of the Montreal Protocol on climate and ozone evolution using the Earth system model (ESM) SOCOLv4.0 which includes dynamic ocean, sea ice, interactive ozone, and stratospheric aerosol modules. Here, we analyze the results of the numerical experiments performed with and without limitations on the ozone-depleting substances emissions. In the experiments, we have used CMIP6 SSP2-4.5 and SSP5-8.5 scenarios for future forcing behavior. We confirm previous results relative to catastrophic ozone layer depletion in the case without MPA limitations. The climate effects of MPA consist of additional global mean warming by up to 2.5 K in 2100 caused by the direct radiative effect of the hODS. We also obtained dramatic changes in several essential climate variables such as regional surface air temperature, sea-ice cover, and precipitation fields. Our research updates and complements previous modeling studies on the quantification of MPA benefits for the terrestrial atmosphere and climate. Text Sea ice Copernicus Publications: E-Journals |
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Copernicus Publications: E-Journals |
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English |
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It is now recognized and confirmed that the ozone layer shields the biosphere from dangerous solar UV radiation and is also important for the global atmosphere and climate. The observed massive ozone depletion forced the introduction of limitations on the production of halogen-containing ozone-depleting substances (hODS) by the Montreal Protocol and its Amendments (MPA). Further research was aimed at analyzing the role played by the Montreal Protocol to increase public awareness of its necessity. In this study, we evaluate the benefits of the Montreal Protocol on climate and ozone evolution using the Earth system model (ESM) SOCOLv4.0 which includes dynamic ocean, sea ice, interactive ozone, and stratospheric aerosol modules. Here, we analyze the results of the numerical experiments performed with and without limitations on the ozone-depleting substances emissions. In the experiments, we have used CMIP6 SSP2-4.5 and SSP5-8.5 scenarios for future forcing behavior. We confirm previous results relative to catastrophic ozone layer depletion in the case without MPA limitations. The climate effects of MPA consist of additional global mean warming by up to 2.5 K in 2100 caused by the direct radiative effect of the hODS. We also obtained dramatic changes in several essential climate variables such as regional surface air temperature, sea-ice cover, and precipitation fields. Our research updates and complements previous modeling studies on the quantification of MPA benefits for the terrestrial atmosphere and climate. |
format |
Text |
author |
Egorova, Tatiana Sedlacek, Jan Sukhodolov, Timofei Karagodin-Doyennel, Arseniy Zilker, Franziska Rozanov, Eugene |
spellingShingle |
Egorova, Tatiana Sedlacek, Jan Sukhodolov, Timofei Karagodin-Doyennel, Arseniy Zilker, Franziska Rozanov, Eugene Montreal Protocol's impact on the ozone layer and climate |
author_facet |
Egorova, Tatiana Sedlacek, Jan Sukhodolov, Timofei Karagodin-Doyennel, Arseniy Zilker, Franziska Rozanov, Eugene |
author_sort |
Egorova, Tatiana |
title |
Montreal Protocol's impact on the ozone layer and climate |
title_short |
Montreal Protocol's impact on the ozone layer and climate |
title_full |
Montreal Protocol's impact on the ozone layer and climate |
title_fullStr |
Montreal Protocol's impact on the ozone layer and climate |
title_full_unstemmed |
Montreal Protocol's impact on the ozone layer and climate |
title_sort |
montreal protocol's impact on the ozone layer and climate |
publishDate |
2022 |
url |
https://doi.org/10.5194/acp-2022-730 https://acp.copernicus.org/preprints/acp-2022-730/ |
genre |
Sea ice |
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Sea ice |
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eISSN: 1680-7324 |
op_relation |
doi:10.5194/acp-2022-730 https://acp.copernicus.org/preprints/acp-2022-730/ |
op_doi |
https://doi.org/10.5194/acp-2022-730 |
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1766193384081326080 |