Response of Arctic ozone to sudden stratospheric warmings
International audience Sudden stratospheric warmings (SSWs) are the main source of intra-seasonal and interannual variability in the extratropical stratosphere. The profound alterations to the stratospheric circulation that accompany such events produce rapid changes in the atmospheric composition....
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Online Access: | https://hal.science/hal-03658649 https://hal.science/hal-03658649/document https://hal.science/hal-03658649/file/acp-18-16499-2018.pdf https://doi.org/10.5194/acp-18-16499-2018 |
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ftecoleponts:oai:HAL:hal-03658649v1 2024-09-15T18:31:18+00:00 Response of Arctic ozone to sudden stratospheric warmings de La Cámara, Alvaro Abalos, Marta Hitchcock, Peter Calvo, Natalia Garcia, Rolando R. Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X) Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-École des Ponts ParisTech (ENPC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL) 2018 https://hal.science/hal-03658649 https://hal.science/hal-03658649/document https://hal.science/hal-03658649/file/acp-18-16499-2018.pdf https://doi.org/10.5194/acp-18-16499-2018 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-18-16499-2018 hal-03658649 https://hal.science/hal-03658649 https://hal.science/hal-03658649/document https://hal.science/hal-03658649/file/acp-18-16499-2018.pdf BIBCODE: 2018ACP.1816499D doi:10.5194/acp-18-16499-2018 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://hal.science/hal-03658649 Atmospheric Chemistry and Physics, 2018, 18, pp.16499-16513. ⟨10.5194/acp-18-16499-2018⟩ [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2018 ftecoleponts https://doi.org/10.5194/acp-18-16499-2018 2024-08-13T23:47:27Z International audience Sudden stratospheric warmings (SSWs) are the main source of intra-seasonal and interannual variability in the extratropical stratosphere. The profound alterations to the stratospheric circulation that accompany such events produce rapid changes in the atmospheric composition. The goal of this study is to deepen our understanding of the dynamics that control changes of Arctic ozone during the life cycle of SSWs, providing a quantitative analysis of advective transport and mixing. We use output from four ensemble members (60 years each) of the Whole Atmospheric Community Climate Model version 4 performed for the Chemistry Climate Model Initiative and also use reanalysis and satellite data for validation purposes. The composite evolution of ozone displays positive mixing ratio anomalies of up to 0.5-0.6 ppmv above 550 K ( ∼ 50 hPa) around the central warming date and negative anomalies below (-0.2 to -0.3 ppmv), consistently in observations, reanalysis, and the model. Our analysis shows a clear temporal offset between ozone eddy transport and diffusive ozone fluxes. The initial changes in ozone are mainly driven by isentropic eddy fluxes linked to enhanced wave drag responsible for the SSW. The recovery of climatological values in the aftermath of SSWs is slower in the lower than in the upper stratosphere and is driven by the competing effects of cross-isentropic motions (which work towards the recovery) and isentropic irreversible mixing (which delays the recovery). These features are enhanced in strength and duration during sufficiently deep SSWs, particularly those followed by polar-night jet oscillation (PJO) events. It is found that SSW-induced ozone concentration anomalies below 600 K ( ∼ 40 hPa), as well as total column estimates, persist around 1 month longer in PJO than in non-PJO warmings. Article in Journal/Newspaper polar night École des Ponts ParisTech: HAL Atmospheric Chemistry and Physics 18 22 16499 16513 |
institution |
Open Polar |
collection |
École des Ponts ParisTech: HAL |
op_collection_id |
ftecoleponts |
language |
English |
topic |
[SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDU]Sciences of the Universe [physics] de La Cámara, Alvaro Abalos, Marta Hitchcock, Peter Calvo, Natalia Garcia, Rolando R. Response of Arctic ozone to sudden stratospheric warmings |
topic_facet |
[SDU]Sciences of the Universe [physics] |
description |
International audience Sudden stratospheric warmings (SSWs) are the main source of intra-seasonal and interannual variability in the extratropical stratosphere. The profound alterations to the stratospheric circulation that accompany such events produce rapid changes in the atmospheric composition. The goal of this study is to deepen our understanding of the dynamics that control changes of Arctic ozone during the life cycle of SSWs, providing a quantitative analysis of advective transport and mixing. We use output from four ensemble members (60 years each) of the Whole Atmospheric Community Climate Model version 4 performed for the Chemistry Climate Model Initiative and also use reanalysis and satellite data for validation purposes. The composite evolution of ozone displays positive mixing ratio anomalies of up to 0.5-0.6 ppmv above 550 K ( ∼ 50 hPa) around the central warming date and negative anomalies below (-0.2 to -0.3 ppmv), consistently in observations, reanalysis, and the model. Our analysis shows a clear temporal offset between ozone eddy transport and diffusive ozone fluxes. The initial changes in ozone are mainly driven by isentropic eddy fluxes linked to enhanced wave drag responsible for the SSW. The recovery of climatological values in the aftermath of SSWs is slower in the lower than in the upper stratosphere and is driven by the competing effects of cross-isentropic motions (which work towards the recovery) and isentropic irreversible mixing (which delays the recovery). These features are enhanced in strength and duration during sufficiently deep SSWs, particularly those followed by polar-night jet oscillation (PJO) events. It is found that SSW-induced ozone concentration anomalies below 600 K ( ∼ 40 hPa), as well as total column estimates, persist around 1 month longer in PJO than in non-PJO warmings. |
author2 |
Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X) Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-École des Ponts ParisTech (ENPC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL) |
format |
Article in Journal/Newspaper |
author |
de La Cámara, Alvaro Abalos, Marta Hitchcock, Peter Calvo, Natalia Garcia, Rolando R. |
author_facet |
de La Cámara, Alvaro Abalos, Marta Hitchcock, Peter Calvo, Natalia Garcia, Rolando R. |
author_sort |
de La Cámara, Alvaro |
title |
Response of Arctic ozone to sudden stratospheric warmings |
title_short |
Response of Arctic ozone to sudden stratospheric warmings |
title_full |
Response of Arctic ozone to sudden stratospheric warmings |
title_fullStr |
Response of Arctic ozone to sudden stratospheric warmings |
title_full_unstemmed |
Response of Arctic ozone to sudden stratospheric warmings |
title_sort |
response of arctic ozone to sudden stratospheric warmings |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.science/hal-03658649 https://hal.science/hal-03658649/document https://hal.science/hal-03658649/file/acp-18-16499-2018.pdf https://doi.org/10.5194/acp-18-16499-2018 |
genre |
polar night |
genre_facet |
polar night |
op_source |
ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://hal.science/hal-03658649 Atmospheric Chemistry and Physics, 2018, 18, pp.16499-16513. ⟨10.5194/acp-18-16499-2018⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-18-16499-2018 hal-03658649 https://hal.science/hal-03658649 https://hal.science/hal-03658649/document https://hal.science/hal-03658649/file/acp-18-16499-2018.pdf BIBCODE: 2018ACP.1816499D doi:10.5194/acp-18-16499-2018 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/acp-18-16499-2018 |
container_title |
Atmospheric Chemistry and Physics |
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18 |
container_issue |
22 |
container_start_page |
16499 |
op_container_end_page |
16513 |
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1810472938138238976 |