The influence of energetic particle precipitation on Antarctic stratospheric chlorine and ozone over the 20th century
Abstract x = + 2) descending from the mesosphere and the lower thermosphere during winter. These are produced by energetic particle precipitation (EPP) linked to solar activity and space weather. Active chlorine (ClOx = + x or hydrogen oxides (HOx) and transform both reactive agents into reservoir gases, chlorine nitrate or hydrogen chloride, which buffer ozone destruction by all these agents. We study the interaction between EPP-produced NOx, ClO and ozone over the 20th century by using free-running climate simulations of the chemistry–climate model SOCOL3-MPIOM. A substantial increase of NOx descending to the polar stratosphere is found during winter, which causes ozone depletion in the upper and mid-stratosphere. However, in the Antarctic mid-stratosphere, the EPP-induced ozone depletion became less efficient after the 1960s, especially during springtime. Simultaneously, a significant decrease in stratospheric ClO and an increase in hydrogen chloride – and partly chlorine nitrate between 10–30 hPa – can be ascribed to EPP forcing. Hence, the interaction between EPP-produced NO x/HO x x in the Antarctic upper and mid-stratosphere over coming decades. The future lower stratosphere ozone response by EPP is more uncertain.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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The influence of energetic particle precipitation on Antarctic stratospheric chlorine and ozone over the 20th century ; volume:22 ; number:12 ; year:2022 ; pages:8137-8149 ; extent:13
Atmospheric chemistry and physics ; 22, Heft 12 (2022), 8137-8149 (gesamt 13)
- Creator
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Maliniemi, Ville
Arsenovic, Pavle
Seppälä, Annika
Nesse Tyssøy, Hilde
- DOI
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10.5194/acp-22-8137-2022
- URN
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urn:nbn:de:101:1-2022063005255684521158
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:25 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Maliniemi, Ville
- Arsenovic, Pavle
- Seppälä, Annika
- Nesse Tyssøy, Hilde
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