Warm Arctic-cold Siberia: comparing the recent and the early 20th-century Arctic warmings
International audience The Warm Arctic-cold Siberia surface temperature pattern during recent boreal winter is suggested to be triggered by the ongoing decrease of Arctic autumn sea ice concentration and has been observed together with an increase in mid-latitude extreme events and a meridionalizati...
Published in: | Environmental Research Letters |
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ftccsdartic:oai:HAL:insu-03706512v1 2023-12-17T10:24:01+01:00 Warm Arctic-cold Siberia: comparing the recent and the early 20th-century Arctic warmings Wegmann, Martin Orsolini, Yvan Zolina, Olga Institut des Géosciences de l’Environnement (IGE) Institut de Recherche pour le Développement (IRD)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 ) 2018 https://insu.hal.science/insu-03706512 https://insu.hal.science/insu-03706512/document https://insu.hal.science/insu-03706512/file/Wegmann_2018_Environ._Res._Lett._13_025009.pdf https://doi.org/10.1088/1748-9326/aaa0b7 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.1088/1748-9326/aaa0b7 insu-03706512 https://insu.hal.science/insu-03706512 https://insu.hal.science/insu-03706512/document https://insu.hal.science/insu-03706512/file/Wegmann_2018_Environ._Res._Lett._13_025009.pdf BIBCODE: 2018ERL.13b5009W doi:10.1088/1748-9326/aaa0b7 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess Environmental Research Letters https://insu.hal.science/insu-03706512 Environmental Research Letters, 2018, 13, ⟨10.1088/1748-9326/aaa0b7⟩ [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2018 ftccsdartic https://doi.org/10.1088/1748-9326/aaa0b7 2023-11-19T00:08:28Z International audience The Warm Arctic-cold Siberia surface temperature pattern during recent boreal winter is suggested to be triggered by the ongoing decrease of Arctic autumn sea ice concentration and has been observed together with an increase in mid-latitude extreme events and a meridionalization of tropospheric circulation. However, the exact mechanism behind this dipole temperature pattern is still under debate, since model experiments with reduced sea ice show conflicting results. We use the early twentieth-century Arctic warming (ETCAW) as a case study to investigate the link between September sea ice in the Barents-Kara Sea (BKS) and the Siberian temperature evolution. Analyzing a variety of long-term climate reanalyses, we find that the overall winter temperature and heat flux trend occurs with the reduction of September BKS sea ice. Tropospheric conditions show a strengthened atmospheric blocking over the BKS, strengthening the advection of cold air from the Arctic to central Siberia on its eastern flank, together with a reduction of warm air advection by the westerlies. This setup is valid for both the ETCAW and the current Arctic warming period. Article in Journal/Newspaper Arctic Kara Sea Sea ice Siberia Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Arctic Kara Sea Environmental Research Letters 13 2 025009 |
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 |
[SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDU]Sciences of the Universe [physics] Wegmann, Martin Orsolini, Yvan Zolina, Olga Warm Arctic-cold Siberia: comparing the recent and the early 20th-century Arctic warmings |
topic_facet |
[SDU]Sciences of the Universe [physics] |
description |
International audience The Warm Arctic-cold Siberia surface temperature pattern during recent boreal winter is suggested to be triggered by the ongoing decrease of Arctic autumn sea ice concentration and has been observed together with an increase in mid-latitude extreme events and a meridionalization of tropospheric circulation. However, the exact mechanism behind this dipole temperature pattern is still under debate, since model experiments with reduced sea ice show conflicting results. We use the early twentieth-century Arctic warming (ETCAW) as a case study to investigate the link between September sea ice in the Barents-Kara Sea (BKS) and the Siberian temperature evolution. Analyzing a variety of long-term climate reanalyses, we find that the overall winter temperature and heat flux trend occurs with the reduction of September BKS sea ice. Tropospheric conditions show a strengthened atmospheric blocking over the BKS, strengthening the advection of cold air from the Arctic to central Siberia on its eastern flank, together with a reduction of warm air advection by the westerlies. This setup is valid for both the ETCAW and the current Arctic warming period. |
author2 |
Institut des Géosciences de l’Environnement (IGE) Institut de Recherche pour le Développement (IRD)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 ) |
format |
Article in Journal/Newspaper |
author |
Wegmann, Martin Orsolini, Yvan Zolina, Olga |
author_facet |
Wegmann, Martin Orsolini, Yvan Zolina, Olga |
author_sort |
Wegmann, Martin |
title |
Warm Arctic-cold Siberia: comparing the recent and the early 20th-century Arctic warmings |
title_short |
Warm Arctic-cold Siberia: comparing the recent and the early 20th-century Arctic warmings |
title_full |
Warm Arctic-cold Siberia: comparing the recent and the early 20th-century Arctic warmings |
title_fullStr |
Warm Arctic-cold Siberia: comparing the recent and the early 20th-century Arctic warmings |
title_full_unstemmed |
Warm Arctic-cold Siberia: comparing the recent and the early 20th-century Arctic warmings |
title_sort |
warm arctic-cold siberia: comparing the recent and the early 20th-century arctic warmings |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://insu.hal.science/insu-03706512 https://insu.hal.science/insu-03706512/document https://insu.hal.science/insu-03706512/file/Wegmann_2018_Environ._Res._Lett._13_025009.pdf https://doi.org/10.1088/1748-9326/aaa0b7 |
geographic |
Arctic Kara Sea |
geographic_facet |
Arctic Kara Sea |
genre |
Arctic Kara Sea Sea ice Siberia |
genre_facet |
Arctic Kara Sea Sea ice Siberia |
op_source |
Environmental Research Letters https://insu.hal.science/insu-03706512 Environmental Research Letters, 2018, 13, ⟨10.1088/1748-9326/aaa0b7⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1088/1748-9326/aaa0b7 insu-03706512 https://insu.hal.science/insu-03706512 https://insu.hal.science/insu-03706512/document https://insu.hal.science/insu-03706512/file/Wegmann_2018_Environ._Res._Lett._13_025009.pdf BIBCODE: 2018ERL.13b5009W doi:10.1088/1748-9326/aaa0b7 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1088/1748-9326/aaa0b7 |
container_title |
Environmental Research Letters |
container_volume |
13 |
container_issue |
2 |
container_start_page |
025009 |
_version_ |
1785562176842366976 |