Hocke, Klemens; Sauvageat, Eric; Bernet, Leonie (2023). Response of Total Column Ozone at High Latitudes to Sudden Stratospheric Warmings. Atmosphere, 14(3), p. 450. MDPI 10.3390/atmos14030450
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The total column ozone (TCO) at northern high latitudes is increased over a course of 1–2 months after a major sudden stratospheric warming as a consequence of enhanced ozone eddy transport and diffusive ozone fluxes. We analyzed ground-based measurements of TCO from Oslo, Andøya and Ny Ålesund from 2000 to 2020. During this time interval, 15 major sudden stratospheric warmings (SSWs) occurred. The observed TCO variations are in a good agreement with those of ECMWF Reanalysis v5 (ERA5), showing that TCO from ERA5 is reliable, even during dynamically active periods. ERA5 has the advantage that it has no data gaps during the polar night. We found that TCO was increased by up to 190 DU after the SSW of February 2010, over one month. The composite analysis of the 15 SSWs provided the result that TCO is increased on average by about 50 DU over one month after the central date of the SSW.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
08 Faculty of Science > Institute of Applied Physics 10 Strategic Research Centers > Oeschger Centre for Climate Change Research (OCCR) 08 Faculty of Science > Institute of Applied Physics > Microwaves |
UniBE Contributor: |
Hocke, Klemens, Sauvageat, Eric |
Subjects: |
500 Science > 570 Life sciences; biology 600 Technology > 620 Engineering 000 Computer science, knowledge & systems 500 Science > 530 Physics |
ISSN: |
2073-4433 |
Publisher: |
MDPI |
Language: |
English |
Submitter: |
Simone Corry |
Date Deposited: |
08 Sep 2023 15:49 |
Last Modified: |
29 Oct 2023 02:23 |
Publisher DOI: |
10.3390/atmos14030450 |
BORIS DOI: |
10.48350/186169 |
URI: |
https://boris.unibe.ch/id/eprint/186169 |
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