Climate impact of idealized winter polar mesospheric and stratospheric ozone losses as caused by energetic particle precipitation
Energetic particles enter the polar atmosphere and enhance the production of nitrogen oxides and hydrogen oxides in the winter stratosphere and mesosphere. Both components are powerful ozone destroyers. Recently, it has been inferred from observations that the direct effect of energetic particle pre...
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ftcopernicus:oai:publications.copernicus.org:acp59453 2023-05-15T18:02:15+02:00 Climate impact of idealized winter polar mesospheric and stratospheric ozone losses as caused by energetic particle precipitation Meraner, Katharina Schmidt, Hauke 2019-02-07 application/pdf https://doi.org/10.5194/acp-18-1079-2018 https://www.atmos-chem-phys.net/18/1079/2018/ eng eng doi:10.5194/acp-18-1079-2018 https://www.atmos-chem-phys.net/18/1079/2018/ eISSN: 1680-7324 Text 2019 ftcopernicus https://doi.org/10.5194/acp-18-1079-2018 2019-12-24T09:50:41Z Energetic particles enter the polar atmosphere and enhance the production of nitrogen oxides and hydrogen oxides in the winter stratosphere and mesosphere. Both components are powerful ozone destroyers. Recently, it has been inferred from observations that the direct effect of energetic particle precipitation (EPP) causes significant long-term mesospheric ozone variability. Satellites observe a decrease in mesospheric ozone up to 34 % between EPP maximum and EPP minimum. Stratospheric ozone decreases due to the indirect effect of EPP by about 10–15 % observed by satellite instruments. Here, we analyze the climate impact of winter boreal idealized polar mesospheric and polar stratospheric ozone losses as caused by EPP in the coupled Max Planck Institute Earth System Model (MPI-ESM). Using radiative transfer modeling, we find that the radiative forcing of mesospheric ozone loss during polar night is small. Hence, climate effects of mesospheric ozone loss due to energetic particles seem unlikely. Stratospheric ozone loss due to energetic particles warms the winter polar stratosphere and subsequently weakens the polar vortex. However, those changes are small, and few statistically significant changes in surface climate are found. Text polar night Copernicus Publications: E-Journals Atmospheric Chemistry and Physics 18 2 1079 1089 |
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Open Polar |
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Copernicus Publications: E-Journals |
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ftcopernicus |
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English |
description |
Energetic particles enter the polar atmosphere and enhance the production of nitrogen oxides and hydrogen oxides in the winter stratosphere and mesosphere. Both components are powerful ozone destroyers. Recently, it has been inferred from observations that the direct effect of energetic particle precipitation (EPP) causes significant long-term mesospheric ozone variability. Satellites observe a decrease in mesospheric ozone up to 34 % between EPP maximum and EPP minimum. Stratospheric ozone decreases due to the indirect effect of EPP by about 10–15 % observed by satellite instruments. Here, we analyze the climate impact of winter boreal idealized polar mesospheric and polar stratospheric ozone losses as caused by EPP in the coupled Max Planck Institute Earth System Model (MPI-ESM). Using radiative transfer modeling, we find that the radiative forcing of mesospheric ozone loss during polar night is small. Hence, climate effects of mesospheric ozone loss due to energetic particles seem unlikely. Stratospheric ozone loss due to energetic particles warms the winter polar stratosphere and subsequently weakens the polar vortex. However, those changes are small, and few statistically significant changes in surface climate are found. |
format |
Text |
author |
Meraner, Katharina Schmidt, Hauke |
spellingShingle |
Meraner, Katharina Schmidt, Hauke Climate impact of idealized winter polar mesospheric and stratospheric ozone losses as caused by energetic particle precipitation |
author_facet |
Meraner, Katharina Schmidt, Hauke |
author_sort |
Meraner, Katharina |
title |
Climate impact of idealized winter polar mesospheric and stratospheric ozone losses as caused by energetic particle precipitation |
title_short |
Climate impact of idealized winter polar mesospheric and stratospheric ozone losses as caused by energetic particle precipitation |
title_full |
Climate impact of idealized winter polar mesospheric and stratospheric ozone losses as caused by energetic particle precipitation |
title_fullStr |
Climate impact of idealized winter polar mesospheric and stratospheric ozone losses as caused by energetic particle precipitation |
title_full_unstemmed |
Climate impact of idealized winter polar mesospheric and stratospheric ozone losses as caused by energetic particle precipitation |
title_sort |
climate impact of idealized winter polar mesospheric and stratospheric ozone losses as caused by energetic particle precipitation |
publishDate |
2019 |
url |
https://doi.org/10.5194/acp-18-1079-2018 https://www.atmos-chem-phys.net/18/1079/2018/ |
genre |
polar night |
genre_facet |
polar night |
op_source |
eISSN: 1680-7324 |
op_relation |
doi:10.5194/acp-18-1079-2018 https://www.atmos-chem-phys.net/18/1079/2018/ |
op_doi |
https://doi.org/10.5194/acp-18-1079-2018 |
container_title |
Atmospheric Chemistry and Physics |
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18 |
container_issue |
2 |
container_start_page |
1079 |
op_container_end_page |
1089 |
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1766172047759638528 |