Ozone anomalies over the Arctic during major sudden stratospheric warming events and its relation to mesospheric dynamics

Sudden stratospheric warming (SSW) events have a significant impact on stratospheric ozone in the Arctic region. This study uses GROMOS-C radiometer measurements and MERRA-2 data, and Aura-MLS observations to investigate the ozone variability over Svalbard (79°N, 12°E) for SSW events between 2016 an...

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Main Authors: Shi, G., Krochin, W., Sauvageat, E., Stober, G.
Format: Conference Object
Language:English
Published: 2023
Subjects:
Online Access:https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016765
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spelling ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_5016765 2023-06-11T04:09:13+02:00 Ozone anomalies over the Arctic during major sudden stratospheric warming events and its relation to mesospheric dynamics Shi, G. Krochin, W. Sauvageat, E. Stober, G. 2023 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016765 eng eng info:eu-repo/semantics/altIdentifier/doi/10.57757/IUGG23-0723 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016765 XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) info:eu-repo/semantics/conferenceObject 2023 ftgfzpotsdam https://doi.org/10.57757/IUGG23-0723 2023-05-07T23:38:37Z Sudden stratospheric warming (SSW) events have a significant impact on stratospheric ozone in the Arctic region. This study uses GROMOS-C radiometer measurements and MERRA-2 data, and Aura-MLS observations to investigate the ozone variability over Svalbard (79°N, 12°E) for SSW events between 2016 and 2022 and examines the potential role of stratospheric ozone in connection to the mesospheric tides enhancement of the migrating semidiurnal (SW2) tide reported for such events. GROMOS-C measurements show good agreement with MERRA-2 simulation and Aura-MLS observations in the middle stratosphere during highly altered dynamics of SSW. Here we focus on the stratospheric ozone anomaly associated with the onset of a major SSW at polar latitudes. Furthermore, we extract the mesospheric semi-diurnal tide (SDT) and diurnal tide (DT) observed in the zonal and meridional winds recorded by a nearby meteor radar over Svalbard (79°N, 12°E). We analyze the anomaly variations in stratospheric ozone and the behavior of SDT during a series of that occurred between 2016 and 2022. We also characterized the SSW events according to their dynamical signature (vortex splitting or displacement) and strength (major or minor). The results of this study suggest a connection between changes in stratospheric ozone and the underlying circulation that also impacts the tidal propagation up to the mesosphere, particularly, the SDT during SSWs, indicating that together with the radiative forcing may play a significant role in driving mesospheric tides. Conference Object Arctic Svalbard GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Arctic Merra ENVELOPE(12.615,12.615,65.816,65.816) Svalbard
institution Open Polar
collection GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
op_collection_id ftgfzpotsdam
language English
description Sudden stratospheric warming (SSW) events have a significant impact on stratospheric ozone in the Arctic region. This study uses GROMOS-C radiometer measurements and MERRA-2 data, and Aura-MLS observations to investigate the ozone variability over Svalbard (79°N, 12°E) for SSW events between 2016 and 2022 and examines the potential role of stratospheric ozone in connection to the mesospheric tides enhancement of the migrating semidiurnal (SW2) tide reported for such events. GROMOS-C measurements show good agreement with MERRA-2 simulation and Aura-MLS observations in the middle stratosphere during highly altered dynamics of SSW. Here we focus on the stratospheric ozone anomaly associated with the onset of a major SSW at polar latitudes. Furthermore, we extract the mesospheric semi-diurnal tide (SDT) and diurnal tide (DT) observed in the zonal and meridional winds recorded by a nearby meteor radar over Svalbard (79°N, 12°E). We analyze the anomaly variations in stratospheric ozone and the behavior of SDT during a series of that occurred between 2016 and 2022. We also characterized the SSW events according to their dynamical signature (vortex splitting or displacement) and strength (major or minor). The results of this study suggest a connection between changes in stratospheric ozone and the underlying circulation that also impacts the tidal propagation up to the mesosphere, particularly, the SDT during SSWs, indicating that together with the radiative forcing may play a significant role in driving mesospheric tides.
format Conference Object
author Shi, G.
Krochin, W.
Sauvageat, E.
Stober, G.
spellingShingle Shi, G.
Krochin, W.
Sauvageat, E.
Stober, G.
Ozone anomalies over the Arctic during major sudden stratospheric warming events and its relation to mesospheric dynamics
author_facet Shi, G.
Krochin, W.
Sauvageat, E.
Stober, G.
author_sort Shi, G.
title Ozone anomalies over the Arctic during major sudden stratospheric warming events and its relation to mesospheric dynamics
title_short Ozone anomalies over the Arctic during major sudden stratospheric warming events and its relation to mesospheric dynamics
title_full Ozone anomalies over the Arctic during major sudden stratospheric warming events and its relation to mesospheric dynamics
title_fullStr Ozone anomalies over the Arctic during major sudden stratospheric warming events and its relation to mesospheric dynamics
title_full_unstemmed Ozone anomalies over the Arctic during major sudden stratospheric warming events and its relation to mesospheric dynamics
title_sort ozone anomalies over the arctic during major sudden stratospheric warming events and its relation to mesospheric dynamics
publishDate 2023
url https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016765
long_lat ENVELOPE(12.615,12.615,65.816,65.816)
geographic Arctic
Merra
Svalbard
geographic_facet Arctic
Merra
Svalbard
genre Arctic
Svalbard
genre_facet Arctic
Svalbard
op_source XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
op_relation info:eu-repo/semantics/altIdentifier/doi/10.57757/IUGG23-0723
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016765
op_doi https://doi.org/10.57757/IUGG23-0723
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