Zonally asymmetric influences of the quasi-biennial oscillation on stratospheric ozone
While the zonal mean signals associated with the quasi-biennial oscillation (QBO) in stratospheric ozone have been relatively well documented, the zonal (longitudinal) differences have been less studied. Using satellite-based ozone data, ERA5 reanalysis and model simulations, we demonstrate that the...
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ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_5020588 2023-07-23T04:15:46+02:00 Zonally asymmetric influences of the quasi-biennial oscillation on stratospheric ozone Wang, W. Hong, J. Shangguan, M. Wang, H. Jiang, W. Zhao, S. 2023-07-11 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020588 eng eng info:eu-repo/semantics/altIdentifier/doi/10.57757/IUGG23-3219 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020588 XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) info:eu-repo/semantics/conferenceObject 2023 ftgfzpotsdam https://doi.org/10.57757/IUGG23-3219 2023-07-02T23:40:07Z While the zonal mean signals associated with the quasi-biennial oscillation (QBO) in stratospheric ozone have been relatively well documented, the zonal (longitudinal) differences have been less studied. Using satellite-based ozone data, ERA5 reanalysis and model simulations, we demonstrate that the influences of QBO on stratospheric ozone and total column ozone (TCO) are seasonally dependent zonally asymmetric. During boreal winter (DJF), positive anomalies of TCO and stratospheric ozone are evident during QBO westerly (QBOW) phases over the regions from North America to the North Atlantic (120˚ W–30˚ E), while significant negative anomalies exist over other longitudes in the Arctic. In boreal autumn (SON), TCO and stratospheric ozone are anomalously high during QBOW from Greenland to Eurasia (60˚ W–120˚ E) but anomalously low in other regions over the Arctic. Weak positive TCO and stratospheric ozone anomalies exist over the South America sector (90˚ W–30˚ E) of the Antarctic, while negative anomalies of TCO and stratospheric ozone are seen in other longitudes. Analysis of meteorological conditions indicates that the QBO ozone perturbations are mainly caused by dynamical transport. QBO affects the geopotential height and the polar vortex and subsequently the transport of ozone-rich air from lower latitudes to the polar region, which therefore influences the ozone concentrations over the polar region. The geopotential height anomalies associated with QBO (QBOW–QBOE) are zonally asymmetric with clear wave number 1 features, which indicates that QBO influences the polar vortex and stratospheric ozone mainly by modifying the wave number 1 activities. Conference Object Antarc* Antarctic Arctic Greenland North Atlantic GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Antarctic Arctic Greenland The Antarctic |
institution |
Open Polar |
collection |
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdam |
language |
English |
description |
While the zonal mean signals associated with the quasi-biennial oscillation (QBO) in stratospheric ozone have been relatively well documented, the zonal (longitudinal) differences have been less studied. Using satellite-based ozone data, ERA5 reanalysis and model simulations, we demonstrate that the influences of QBO on stratospheric ozone and total column ozone (TCO) are seasonally dependent zonally asymmetric. During boreal winter (DJF), positive anomalies of TCO and stratospheric ozone are evident during QBO westerly (QBOW) phases over the regions from North America to the North Atlantic (120˚ W–30˚ E), while significant negative anomalies exist over other longitudes in the Arctic. In boreal autumn (SON), TCO and stratospheric ozone are anomalously high during QBOW from Greenland to Eurasia (60˚ W–120˚ E) but anomalously low in other regions over the Arctic. Weak positive TCO and stratospheric ozone anomalies exist over the South America sector (90˚ W–30˚ E) of the Antarctic, while negative anomalies of TCO and stratospheric ozone are seen in other longitudes. Analysis of meteorological conditions indicates that the QBO ozone perturbations are mainly caused by dynamical transport. QBO affects the geopotential height and the polar vortex and subsequently the transport of ozone-rich air from lower latitudes to the polar region, which therefore influences the ozone concentrations over the polar region. The geopotential height anomalies associated with QBO (QBOW–QBOE) are zonally asymmetric with clear wave number 1 features, which indicates that QBO influences the polar vortex and stratospheric ozone mainly by modifying the wave number 1 activities. |
format |
Conference Object |
author |
Wang, W. Hong, J. Shangguan, M. Wang, H. Jiang, W. Zhao, S. |
spellingShingle |
Wang, W. Hong, J. Shangguan, M. Wang, H. Jiang, W. Zhao, S. Zonally asymmetric influences of the quasi-biennial oscillation on stratospheric ozone |
author_facet |
Wang, W. Hong, J. Shangguan, M. Wang, H. Jiang, W. Zhao, S. |
author_sort |
Wang, W. |
title |
Zonally asymmetric influences of the quasi-biennial oscillation on stratospheric ozone |
title_short |
Zonally asymmetric influences of the quasi-biennial oscillation on stratospheric ozone |
title_full |
Zonally asymmetric influences of the quasi-biennial oscillation on stratospheric ozone |
title_fullStr |
Zonally asymmetric influences of the quasi-biennial oscillation on stratospheric ozone |
title_full_unstemmed |
Zonally asymmetric influences of the quasi-biennial oscillation on stratospheric ozone |
title_sort |
zonally asymmetric influences of the quasi-biennial oscillation on stratospheric ozone |
publishDate |
2023 |
url |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020588 |
geographic |
Antarctic Arctic Greenland The Antarctic |
geographic_facet |
Antarctic Arctic Greenland The Antarctic |
genre |
Antarc* Antarctic Arctic Greenland North Atlantic |
genre_facet |
Antarc* Antarctic Arctic Greenland North Atlantic |
op_source |
XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.57757/IUGG23-3219 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020588 |
op_doi |
https://doi.org/10.57757/IUGG23-3219 |
_version_ |
1772176783072821248 |