title: Influence of Natural Tropical Oscillations on Ozone Content and Meridional Circulation in the Boreal Winter Stratosphere
metadata.name: dc.contributor.author
metadata.value: Ermakova, Tatiana
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Koval, Andrey
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Didenko, Kseniia
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Aniskina, Olga
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Okulicheva, Arina
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2024-06-24T08:30:32Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2024-06-24T08:30:32Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2024-06-15
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/45606
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: The dependence of ozone content in the polar stratosphere upon different phases of the quasi-biennial oscillation (QBO) of the zonal wind and the El Niño–Southern Oscillation (ENSO) during winter was studied. The monthly (from November to January) mean residual meridional circulation (RMC) was calculated for four different combinations of the main phases of ENSO and QBO using MERRA2 reanalysis data. It has been demonstrated that the QBO phase manifests itself in different vertical distributions of ozone in the equatorial stratosphere, as well as in strengthening/weakening of the secondary meridional circulation in the tropics. The enhancement of the RMC from the tropical to the polar stratosphere is stronger at altitudes where ozone is higher in the tropics under El Niño conditions. The RMC modification and intensification are observed from ozone-depleted areas under La Niña conditions. A “cumulative” effect is observed by February under La Niña conditions and the easterly QBO, which is expressed in the lowest ozone content in the polar stratosphere. The numerical experiments carried out using the Middle and Upper Atmosphere Model (MUAM) confirmed tendencies in changes in the meridional transport detected from the reanalysis data for different combinations of QBO and ENSO.
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: MDPI Atmosphere
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Influence of Natural Tropical Oscillations on Ozone Content and Meridional Circulation in the Boreal Winter Stratosphere
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: Ermakova_etal_atmosphere-15-00717.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/45606/1/Ermakova_etal_atmosphere-15-00717.pdf
resources.format: Adobe PDF
resources.size: 3,8 MB