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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2021
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Online Access: | https://doi.org/10.3390/atmos12111470 https://doaj.org/article/66fec8624deb4dab9c3c4d3277b5b2cd |
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ftdoajarticles:oai:doaj.org/article:66fec8624deb4dab9c3c4d3277b5b2cd 2023-05-15T14:56:55+02:00 Numerical Modeling of Ozone Loss in the Exceptional Arctic Stratosphere Winter–Spring of 2020 Sergey P. Smyshlyaev Pavel N. Vargin Maksim A. Motsakov 2021-11-01T00:00:00Z https://doi.org/10.3390/atmos12111470 https://doaj.org/article/66fec8624deb4dab9c3c4d3277b5b2cd EN eng MDPI AG https://www.mdpi.com/2073-4433/12/11/1470 https://doaj.org/toc/2073-4433 doi:10.3390/atmos12111470 2073-4433 https://doaj.org/article/66fec8624deb4dab9c3c4d3277b5b2cd Atmosphere, Vol 12, Iss 1470, p 1470 (2021) Arctic stratosphere stratospheric polar vortex ozone layer chemistry-transport model chemistry ozone loss planetary waves Meteorology. Climatology QC851-999 article 2021 ftdoajarticles https://doi.org/10.3390/atmos12111470 2022-12-31T11:28:55Z 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. Article in Journal/Newspaper Arctic Alaska Directory of Open Access Journals: DOAJ Articles Arctic Gulf of Alaska Canada Merra ENVELOPE(12.615,12.615,65.816,65.816) Atmosphere 12 11 1470 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
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 |
topic_facet |
Arctic stratosphere stratospheric polar vortex ozone layer chemistry-transport model chemistry ozone loss planetary waves Meteorology. Climatology QC851-999 |
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 in Journal/Newspaper |
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://doi.org/10.3390/atmos12111470 https://doaj.org/article/66fec8624deb4dab9c3c4d3277b5b2cd |
long_lat |
ENVELOPE(12.615,12.615,65.816,65.816) |
geographic |
Arctic Gulf of Alaska Canada Merra |
geographic_facet |
Arctic Gulf of Alaska Canada Merra |
genre |
Arctic Alaska |
genre_facet |
Arctic Alaska |
op_source |
Atmosphere, Vol 12, Iss 1470, p 1470 (2021) |
op_relation |
https://www.mdpi.com/2073-4433/12/11/1470 https://doaj.org/toc/2073-4433 doi:10.3390/atmos12111470 2073-4433 https://doaj.org/article/66fec8624deb4dab9c3c4d3277b5b2cd |
op_doi |
https://doi.org/10.3390/atmos12111470 |
container_title |
Atmosphere |
container_volume |
12 |
container_issue |
11 |
container_start_page |
1470 |
_version_ |
1766328980595539968 |