Drivers and surface signal of inter‐annual variability of boreal stratospheric final warmings
International audience Springtime stratospheric final warming (SFW) variability has been suggested to be linked to the tropospheric circulation, particularly over the North Atlantic sector. These findings, however, are based on reanalysis data that cover a rather short period of time (1979‐present)....
Published in: | Journal of Geophysical Research: Atmospheres |
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Main Authors: | , , , , , |
Other Authors: | , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2019
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Online Access: | https://insu.hal.science/insu-02119415 https://insu.hal.science/insu-02119415v1/document https://insu.hal.science/insu-02119415v1/file/Thieblemont_etal_2019_SFW_revised.pdf https://doi.org/10.1029/2018JD029852 |
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Archives ouvertes de Paris-Saclay |
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English |
topic |
stratosphere‐troposphere coupling polar vortex stratosphere ozone dynamics modeling [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
spellingShingle |
stratosphere‐troposphere coupling polar vortex stratosphere ozone dynamics modeling [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] Thiéblemont, Rémi Ayarzagüena, B. Matthes, K. Bekki, Slimane Abalichin, J. Langematz, U. Drivers and surface signal of inter‐annual variability of boreal stratospheric final warmings |
topic_facet |
stratosphere‐troposphere coupling polar vortex stratosphere ozone dynamics modeling [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
description |
International audience Springtime stratospheric final warming (SFW) variability has been suggested to be linked to the tropospheric circulation, particularly over the North Atlantic sector. These findings, however, are based on reanalysis data that cover a rather short period of time (1979‐present). The present work aims to improve the understanding of drivers, trends and surface impact of dynamical variability of boreal SFWs using chemistry‐climate models. We use multi‐decadal integrations of the fully coupled chemistry‐climate models CESM1(WACCM) and EMAC‐O. Four sensitivity experiments are analyzed to assess the impact of external factors; namely the Quasi‐Biennial Oscillation (QBO), sea surface temperature (SST) variability and anthropogenic emissions. SFWs are classified into two types with respect to their vertical development; i.e. events which occur first in the mid‐stratosphere (10‐hPa first SFWs) or first in the upper stratosphere (1‐hPa first SFWs). Our results confirm previous reanalysis results regarding the differences in the time evolution of stratospheric conditions and near‐surface circulation between 10‐hPa and 1‐hPa first SFWs. Additionally, a tripolar SST pattern is, for the first time, identified over the North Atlantic in spring months related to the SFW variability. Our analysis of the influence of remote modulators on SFWs revealed that the occurrence of major warmings in the previous winter favors the occurrence of 10‐hPa first SFWs later on. We further found that QBO and SST variability significantly affect the ratio between 1‐hPa first and 10‐hPa first SFWs. Finally, our results suggest that ozone recovery may impact the timing of the occurrence of 1‐hPa first SFWs. |
author2 |
Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Universidad Complutense de Madrid = Complutense University of Madrid Madrid (UCM) Instituto de Geociencias Madrid (IGEO) Universidad Complutense de Madrid = Complutense University of Madrid Madrid (UCM)-Consejo Superior de Investigaciones Cientificas España = Spanish National Research Council Spain (CSIC) Helmholtz Centre for Ocean Research Kiel (GEOMAR) Christian-Albrechts-Universität zu Kiel = Christian-Albrechts University of Kiel = Université Christian-Albrechts de Kiel (CAU) STRATO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Freie Universität Berlin Institut für Meteorologie Berlin ANR-17-EURE-0006,IPSL-CGS,IPSL Climate graduate school(2017) ANR-10-LABX-0018,L-IPSL,LabEx Institut Pierre Simon Laplace (IPSL): Understand climate and anticipate future changes(2010) |
format |
Article in Journal/Newspaper |
author |
Thiéblemont, Rémi Ayarzagüena, B. Matthes, K. Bekki, Slimane Abalichin, J. Langematz, U. |
author_facet |
Thiéblemont, Rémi Ayarzagüena, B. Matthes, K. Bekki, Slimane Abalichin, J. Langematz, U. |
author_sort |
Thiéblemont, Rémi |
title |
Drivers and surface signal of inter‐annual variability of boreal stratospheric final warmings |
title_short |
Drivers and surface signal of inter‐annual variability of boreal stratospheric final warmings |
title_full |
Drivers and surface signal of inter‐annual variability of boreal stratospheric final warmings |
title_fullStr |
Drivers and surface signal of inter‐annual variability of boreal stratospheric final warmings |
title_full_unstemmed |
Drivers and surface signal of inter‐annual variability of boreal stratospheric final warmings |
title_sort |
drivers and surface signal of inter‐annual variability of boreal stratospheric final warmings |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://insu.hal.science/insu-02119415 https://insu.hal.science/insu-02119415v1/document https://insu.hal.science/insu-02119415v1/file/Thieblemont_etal_2019_SFW_revised.pdf https://doi.org/10.1029/2018JD029852 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISSN: 2169-897X EISSN: 2169-8996 Journal of Geophysical Research: Atmospheres https://insu.hal.science/insu-02119415 Journal of Geophysical Research: Atmospheres, 2019, 124 (10), pp.5400-5417. ⟨10.1029/2018JD029852⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2018JD029852 doi:10.1029/2018JD029852 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2018JD029852 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
124 |
container_issue |
10 |
container_start_page |
5400 |
op_container_end_page |
5417 |
_version_ |
1812816288488095744 |
spelling |
ftuniparissaclay:oai:HAL:insu-02119415v1 2024-10-13T14:09:21+00:00 Drivers and surface signal of inter‐annual variability of boreal stratospheric final warmings Thiéblemont, Rémi Ayarzagüena, B. Matthes, K. Bekki, Slimane Abalichin, J. Langematz, U. Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Universidad Complutense de Madrid = Complutense University of Madrid Madrid (UCM) Instituto de Geociencias Madrid (IGEO) Universidad Complutense de Madrid = Complutense University of Madrid Madrid (UCM)-Consejo Superior de Investigaciones Cientificas España = Spanish National Research Council Spain (CSIC) Helmholtz Centre for Ocean Research Kiel (GEOMAR) Christian-Albrechts-Universität zu Kiel = Christian-Albrechts University of Kiel = Université Christian-Albrechts de Kiel (CAU) STRATO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Freie Universität Berlin Institut für Meteorologie Berlin ANR-17-EURE-0006,IPSL-CGS,IPSL Climate graduate school(2017) ANR-10-LABX-0018,L-IPSL,LabEx Institut Pierre Simon Laplace (IPSL): Understand climate and anticipate future changes(2010) 2019-05-02 https://insu.hal.science/insu-02119415 https://insu.hal.science/insu-02119415v1/document https://insu.hal.science/insu-02119415v1/file/Thieblemont_etal_2019_SFW_revised.pdf https://doi.org/10.1029/2018JD029852 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2018JD029852 doi:10.1029/2018JD029852 info:eu-repo/semantics/OpenAccess ISSN: 2169-897X EISSN: 2169-8996 Journal of Geophysical Research: Atmospheres https://insu.hal.science/insu-02119415 Journal of Geophysical Research: Atmospheres, 2019, 124 (10), pp.5400-5417. ⟨10.1029/2018JD029852⟩ stratosphere‐troposphere coupling polar vortex stratosphere ozone dynamics modeling [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] info:eu-repo/semantics/article Journal articles 2019 ftuniparissaclay https://doi.org/10.1029/2018JD029852 2024-10-03T23:59:13Z International audience Springtime stratospheric final warming (SFW) variability has been suggested to be linked to the tropospheric circulation, particularly over the North Atlantic sector. These findings, however, are based on reanalysis data that cover a rather short period of time (1979‐present). The present work aims to improve the understanding of drivers, trends and surface impact of dynamical variability of boreal SFWs using chemistry‐climate models. We use multi‐decadal integrations of the fully coupled chemistry‐climate models CESM1(WACCM) and EMAC‐O. Four sensitivity experiments are analyzed to assess the impact of external factors; namely the Quasi‐Biennial Oscillation (QBO), sea surface temperature (SST) variability and anthropogenic emissions. SFWs are classified into two types with respect to their vertical development; i.e. events which occur first in the mid‐stratosphere (10‐hPa first SFWs) or first in the upper stratosphere (1‐hPa first SFWs). Our results confirm previous reanalysis results regarding the differences in the time evolution of stratospheric conditions and near‐surface circulation between 10‐hPa and 1‐hPa first SFWs. Additionally, a tripolar SST pattern is, for the first time, identified over the North Atlantic in spring months related to the SFW variability. Our analysis of the influence of remote modulators on SFWs revealed that the occurrence of major warmings in the previous winter favors the occurrence of 10‐hPa first SFWs later on. We further found that QBO and SST variability significantly affect the ratio between 1‐hPa first and 10‐hPa first SFWs. Finally, our results suggest that ozone recovery may impact the timing of the occurrence of 1‐hPa first SFWs. Article in Journal/Newspaper North Atlantic Archives ouvertes de Paris-Saclay Journal of Geophysical Research: Atmospheres 124 10 5400 5417 |