On the observed connection between Arctic sea ice and Eurasian snow in relation to the winter North Atlantic Oscillation
International audience Sea ice concentration (SIC) in the eastern Arctic and snow cover extent (SCE) over central Eurasia in late autumn have been proposed as potential predictors of the winter North Atlantic Oscillation (NAO). Here, maximum covariance analysis is used to further investigate the lin...
Published in: | Environmental Research Letters |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2020
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Online Access: | https://hal.archives-ouvertes.fr/hal-03051668 https://hal.archives-ouvertes.fr/hal-03051668/document https://hal.archives-ouvertes.fr/hal-03051668/file/santolaria_2020_ERL_NAO_snow-seaice.pdf https://doi.org/10.1088/1748-9326/abad57 |
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ftccsdartic:oai:HAL:hal-03051668v1 2023-05-15T14:55:02+02:00 On the observed connection between Arctic sea ice and Eurasian snow in relation to the winter North Atlantic Oscillation Santolaria-Otín, María García-Serrano, Javier Ménégoz, Martin Bech, Joan Institut des Géosciences de l’Environnement (IGE) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ) Université Grenoble Alpes (UGA) 2020-08-07 https://hal.archives-ouvertes.fr/hal-03051668 https://hal.archives-ouvertes.fr/hal-03051668/document https://hal.archives-ouvertes.fr/hal-03051668/file/santolaria_2020_ERL_NAO_snow-seaice.pdf https://doi.org/10.1088/1748-9326/abad57 en eng HAL CCSD IOP Publishing info:eu-repo/semantics/altIdentifier/doi/10.1088/1748-9326/abad57 hal-03051668 https://hal.archives-ouvertes.fr/hal-03051668 https://hal.archives-ouvertes.fr/hal-03051668/document https://hal.archives-ouvertes.fr/hal-03051668/file/santolaria_2020_ERL_NAO_snow-seaice.pdf doi:10.1088/1748-9326/abad57 info:eu-repo/semantics/OpenAccess ISSN: 1748-9326 Environmental Research Letters https://hal.archives-ouvertes.fr/hal-03051668 Environmental Research Letters, IOP Publishing, In press, ⟨10.1088/1748-9326/abad57⟩ [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2020 ftccsdartic https://doi.org/10.1088/1748-9326/abad57 2021-11-07T00:30:07Z International audience Sea ice concentration (SIC) in the eastern Arctic and snow cover extent (SCE) over central Eurasia in late autumn have been proposed as potential predictors of the winter North Atlantic Oscillation (NAO). Here, maximum covariance analysis is used to further investigate the links between autumn SIC in the Barents-Kara Seas (BK) and SCE over Eurasia (EUR) with winter sea level pressure (SLP) in the North Atlantic-European region over 1979-2019. As shown by previous studies, the most significant covariability mode of SIC/BK is found for November. Similarly, the covariability with SCE/EUR is only statistically significant for November, not for October. Changes in temperature, specific humidity, SIC/BK and SCE/EUR in November are associated with a circulation anomaly over the Ural-Siberian region that appears as a precursor of the winter NAO; where the advection of climatological temperature/humidity by the anomalous flow is related to SCE/EUR and SIC/BK anomalies. Article in Journal/Newspaper Arctic North Atlantic North Atlantic oscillation Sea ice Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Arctic Environmental Research Letters 15 12 124010 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDE]Environmental Sciences |
spellingShingle |
[SDE]Environmental Sciences Santolaria-Otín, María García-Serrano, Javier Ménégoz, Martin Bech, Joan On the observed connection between Arctic sea ice and Eurasian snow in relation to the winter North Atlantic Oscillation |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience Sea ice concentration (SIC) in the eastern Arctic and snow cover extent (SCE) over central Eurasia in late autumn have been proposed as potential predictors of the winter North Atlantic Oscillation (NAO). Here, maximum covariance analysis is used to further investigate the links between autumn SIC in the Barents-Kara Seas (BK) and SCE over Eurasia (EUR) with winter sea level pressure (SLP) in the North Atlantic-European region over 1979-2019. As shown by previous studies, the most significant covariability mode of SIC/BK is found for November. Similarly, the covariability with SCE/EUR is only statistically significant for November, not for October. Changes in temperature, specific humidity, SIC/BK and SCE/EUR in November are associated with a circulation anomaly over the Ural-Siberian region that appears as a precursor of the winter NAO; where the advection of climatological temperature/humidity by the anomalous flow is related to SCE/EUR and SIC/BK anomalies. |
author2 |
Institut des Géosciences de l’Environnement (IGE) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ) Université Grenoble Alpes (UGA) |
format |
Article in Journal/Newspaper |
author |
Santolaria-Otín, María García-Serrano, Javier Ménégoz, Martin Bech, Joan |
author_facet |
Santolaria-Otín, María García-Serrano, Javier Ménégoz, Martin Bech, Joan |
author_sort |
Santolaria-Otín, María |
title |
On the observed connection between Arctic sea ice and Eurasian snow in relation to the winter North Atlantic Oscillation |
title_short |
On the observed connection between Arctic sea ice and Eurasian snow in relation to the winter North Atlantic Oscillation |
title_full |
On the observed connection between Arctic sea ice and Eurasian snow in relation to the winter North Atlantic Oscillation |
title_fullStr |
On the observed connection between Arctic sea ice and Eurasian snow in relation to the winter North Atlantic Oscillation |
title_full_unstemmed |
On the observed connection between Arctic sea ice and Eurasian snow in relation to the winter North Atlantic Oscillation |
title_sort |
on the observed connection between arctic sea ice and eurasian snow in relation to the winter north atlantic oscillation |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.archives-ouvertes.fr/hal-03051668 https://hal.archives-ouvertes.fr/hal-03051668/document https://hal.archives-ouvertes.fr/hal-03051668/file/santolaria_2020_ERL_NAO_snow-seaice.pdf https://doi.org/10.1088/1748-9326/abad57 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic North Atlantic North Atlantic oscillation Sea ice |
genre_facet |
Arctic North Atlantic North Atlantic oscillation Sea ice |
op_source |
ISSN: 1748-9326 Environmental Research Letters https://hal.archives-ouvertes.fr/hal-03051668 Environmental Research Letters, IOP Publishing, In press, ⟨10.1088/1748-9326/abad57⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1088/1748-9326/abad57 hal-03051668 https://hal.archives-ouvertes.fr/hal-03051668 https://hal.archives-ouvertes.fr/hal-03051668/document https://hal.archives-ouvertes.fr/hal-03051668/file/santolaria_2020_ERL_NAO_snow-seaice.pdf doi:10.1088/1748-9326/abad57 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1088/1748-9326/abad57 |
container_title |
Environmental Research Letters |
container_volume |
15 |
container_issue |
12 |
container_start_page |
124010 |
_version_ |
1766326827144445952 |