Numerical Modeling of Ozone Loss in the Exceptional Arctic Stratosphere Winter–Spring of 2020

Dynamical processes and changes in the ozone layer in the Arctic stratosphere during the winter of 2019–2020 were analyzed using numerical experiments with a chemistry-transport model (CTM) and reanalysis data. The results of numerical calculations using CTM with Dynamic parameters specified from th...

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Autores principales:	Sergey P. Smyshlyaev, Pavel N. Vargin, Maksim A. Motsakov
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	Arctic stratosphere stratospheric polar vortex ozone layer chemistry-transport model chemistry ozone loss planetary waves Meteorology. Climatology QC851-999
Acceso en línea:	https://doaj.org/article/66fec8624deb4dab9c3c4d3277b5b2cd
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spelling	oai:doaj.org-article:66fec8624deb4dab9c3c4d3277b5b2cd2021-11-25T16:45:12ZNumerical Modeling of Ozone Loss in the Exceptional Arctic Stratosphere Winter–Spring of 202010.3390/atmos121114702073-4433https://doaj.org/article/66fec8624deb4dab9c3c4d3277b5b2cd2021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4433/12/11/1470https://doaj.org/toc/2073-4433Dynamical processes and changes in the ozone layer in the Arctic stratosphere during the winter of 2019–2020 were analyzed using numerical experiments with a chemistry-transport model (CTM) and reanalysis data. The results of numerical calculations using CTM with Dynamic parameters specified from the Modern Era Retrospective analysis for Research and Applications, version 2 (MERRA-2) reanalysis data, carried out according to several scenarios of accounting for the chemical destruction of ozone, demonstrated that both Dynamic and chemical processes contribute significantly to ozone changes over the selected World Ozone and Ultraviolet Radiation Data Centre network stations, both in the Eastern and in the Western hemispheres. Based on numerical experiments with the CTM, the specific Dynamic conditions of winter–spring 2019–2020 described a decrease in ozone up to 100 Dobson Units (DU) in the Eastern Hemisphere and over 150 DU in the Western Hemisphere. In this case, the photochemical destruction of ozone in both the Western and Eastern Hemispheres at a maximum was about 50 DU with peaks in April in the Eastern Hemisphere and in March and April in the Western Hemisphere. Heterogeneous activation of halogen gases on the surface of polar stratospheric clouds, on the one hand, led to a sharp increase in the destruction of ozone in chlorine and bromine catalytic cycles, and, on the other hand, decreased its destruction in nitrogen catalytic cycles. Analysis of wave activity using 3D Plumb fluxes showed that the enhancement of upward wave activity propagation in the middle of March over the Gulf of Alaska was observed during the development stage of the minor sudden stratospheric warming (SSW) event that led to displacement of the stratospheric polar vortex to the north of Canada and decrease of polar stratospheric clouds’ volume.Sergey P. SmyshlyaevPavel N. VarginMaksim A. MotsakovMDPI AGarticleArctic stratospherestratospheric polar vortexozone layerchemistry-transport modelchemistry ozone lossplanetary wavesMeteorology. ClimatologyQC851-999ENAtmosphere, Vol 12, Iss 1470, p 1470 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Arctic stratosphere stratospheric polar vortex ozone layer chemistry-transport model chemistry ozone loss planetary waves Meteorology. Climatology QC851-999
spellingShingle	Arctic stratosphere stratospheric polar vortex ozone layer chemistry-transport model chemistry ozone loss planetary waves Meteorology. Climatology QC851-999 Sergey P. Smyshlyaev Pavel N. Vargin Maksim A. Motsakov Numerical Modeling of Ozone Loss in the Exceptional Arctic Stratosphere Winter–Spring of 2020
description	Dynamical processes and changes in the ozone layer in the Arctic stratosphere during the winter of 2019–2020 were analyzed using numerical experiments with a chemistry-transport model (CTM) and reanalysis data. The results of numerical calculations using CTM with Dynamic parameters specified from the Modern Era Retrospective analysis for Research and Applications, version 2 (MERRA-2) reanalysis data, carried out according to several scenarios of accounting for the chemical destruction of ozone, demonstrated that both Dynamic and chemical processes contribute significantly to ozone changes over the selected World Ozone and Ultraviolet Radiation Data Centre network stations, both in the Eastern and in the Western hemispheres. Based on numerical experiments with the CTM, the specific Dynamic conditions of winter–spring 2019–2020 described a decrease in ozone up to 100 Dobson Units (DU) in the Eastern Hemisphere and over 150 DU in the Western Hemisphere. In this case, the photochemical destruction of ozone in both the Western and Eastern Hemispheres at a maximum was about 50 DU with peaks in April in the Eastern Hemisphere and in March and April in the Western Hemisphere. Heterogeneous activation of halogen gases on the surface of polar stratospheric clouds, on the one hand, led to a sharp increase in the destruction of ozone in chlorine and bromine catalytic cycles, and, on the other hand, decreased its destruction in nitrogen catalytic cycles. Analysis of wave activity using 3D Plumb fluxes showed that the enhancement of upward wave activity propagation in the middle of March over the Gulf of Alaska was observed during the development stage of the minor sudden stratospheric warming (SSW) event that led to displacement of the stratospheric polar vortex to the north of Canada and decrease of polar stratospheric clouds’ volume.
format	article
author	Sergey P. Smyshlyaev Pavel N. Vargin Maksim A. Motsakov
author_facet	Sergey P. Smyshlyaev Pavel N. Vargin Maksim A. Motsakov
author_sort	Sergey P. Smyshlyaev
title	Numerical Modeling of Ozone Loss in the Exceptional Arctic Stratosphere Winter–Spring of 2020
title_short	Numerical Modeling of Ozone Loss in the Exceptional Arctic Stratosphere Winter–Spring of 2020
title_full	Numerical Modeling of Ozone Loss in the Exceptional Arctic Stratosphere Winter–Spring of 2020
title_fullStr	Numerical Modeling of Ozone Loss in the Exceptional Arctic Stratosphere Winter–Spring of 2020
title_full_unstemmed	Numerical Modeling of Ozone Loss in the Exceptional Arctic Stratosphere Winter–Spring of 2020
title_sort	numerical modeling of ozone loss in the exceptional arctic stratosphere winter–spring of 2020
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/66fec8624deb4dab9c3c4d3277b5b2cd
work_keys_str_mv	AT sergeypsmyshlyaev numericalmodelingofozonelossintheexceptionalarcticstratospherewinterspringof2020 AT pavelnvargin numericalmodelingofozonelossintheexceptionalarcticstratospherewinterspringof2020 AT maksimamotsakov numericalmodelingofozonelossintheexceptionalarcticstratospherewinterspringof2020
_version_	1718413022769184768

Numerical Modeling of Ozone Loss in the Exceptional Arctic Stratosphere Winter–Spring of 2020

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