Examining the North Atlantic Oscillation, East Atlantic Pattern, and Jet Variability since 1685
Recent studies have stressed the key role of the east Atlantic (EA) pattern and its interactions with the North Atlantic Oscillation (NAO) in Euro-Atlantic climate variability. However, instrumental records of these leading patterns of variability are short, hampering a proper characterization of th...
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American Meteorological Society
2019
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Online Access: | http://hdl.handle.net/10261/190536 https://doi.org/10.1175/JCLI-D-19-0135.1 https://doi.org/10.13039/501100003329 https://doi.org/10.13039/501100011656 https://doi.org/10.13039/501100001871 |
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ftcsic:oai:digital.csic.es:10261/190536 2024-02-11T10:04:27+01:00 Examining the North Atlantic Oscillation, East Atlantic Pattern, and Jet Variability since 1685 Mellado-Cano, Javier Barriopedro, David García-Herrera, Ricardo Trigo, Ricardo M. Hernández, Armand Instituto Dom Luiz Fundação para a Ciência e a Tecnologia (Portugal) Ministerio de Economía y Competitividad (España) European Research Area for Climate Services Hernández, Armand 2019-08 http://hdl.handle.net/10261/190536 https://doi.org/10.1175/JCLI-D-19-0135.1 https://doi.org/10.13039/501100003329 https://doi.org/10.13039/501100011656 https://doi.org/10.13039/501100001871 en eng American Meteorological Society #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2015-69699-R Publisher's version https://doi-org.sire.ub.edu/10.1175/JCLI-D-19-0135.1 Sí Journal of Climate, 32: 6285–6298 (2019) 0894-8755 http://hdl.handle.net/10261/190536 doi:10.1175/JCLI-D-19-0135.1 1520-0442 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100011656 http://dx.doi.org/10.13039/501100001871 open Atmosphere Atmospheric circulation Jets North Atlantic Oscillation Climate variability Interdecadal variability artículo http://purl.org/coar/resource_type/c_6501 2019 ftcsic https://doi.org/10.1175/JCLI-D-19-0135.110.13039/50110000332910.13039/50110001165610.13039/501100001871 2024-01-16T10:43:36Z Recent studies have stressed the key role of the east Atlantic (EA) pattern and its interactions with the North Atlantic Oscillation (NAO) in Euro-Atlantic climate variability. However, instrumental records of these leading patterns of variability are short, hampering a proper characterization of the atmospheric circulation beyond the mid-nineteenth century. In this work, we present the longest (1685-2014) observational-based records of winter NAO and EA indices as well as estimates of the North Atlantic eddy-driven jet stream speed and latitude for the same period. The time series display large variability from interannual to multidecadal time scales, with, for example, positive (negative) EA (NAO) phases dominating before 1750 (during much of the nineteenth century). By identifying winters with different combinations of NAO/EA phases in the twentieth century, our results highlight the additional role of EA in shaping the North Atlantic action centers and the European climate responses to NAO. The EA interference with the NAO signal is stronger in precipitation than in temperature and affects areas with strong responses to NAO such as Greenland and the western Mediterranean, which prevents simplistic relationships of natural proxies with NAO. The last three centuries uncover multidecadal periods dominated by specific NAO/EA states and substantial interannual-to-centennial variability in the North Atlantic jet stream, thus providing new evidence of the dynamics behind some outstanding periods. Transitions in the NAO/EA phase space have been recurrent and pin down long-lasting anomalies, such as the displacement of the North Atlantic action centers in the late twentieth century, besides some disagreements between NAO indices. This work is a contribution to UID/GEO/50019/2019-Instituto Dom Luiz. Javier Mellado-Cano was supported by the Portuguese Science Foundation (FCT) through the PhD fellowship PD/BD/106028/2014, and by the SpanishMinistry of Economy and Competitiveness through the PALEOSTRAT (CGL201569699-R) ... Article in Journal/Newspaper Greenland North Atlantic North Atlantic oscillation Digital.CSIC (Spanish National Research Council) Greenland Journal of Climate 32 19 6285 6298 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Atmosphere Atmospheric circulation Jets North Atlantic Oscillation Climate variability Interdecadal variability |
spellingShingle |
Atmosphere Atmospheric circulation Jets North Atlantic Oscillation Climate variability Interdecadal variability Mellado-Cano, Javier Barriopedro, David García-Herrera, Ricardo Trigo, Ricardo M. Hernández, Armand Examining the North Atlantic Oscillation, East Atlantic Pattern, and Jet Variability since 1685 |
topic_facet |
Atmosphere Atmospheric circulation Jets North Atlantic Oscillation Climate variability Interdecadal variability |
description |
Recent studies have stressed the key role of the east Atlantic (EA) pattern and its interactions with the North Atlantic Oscillation (NAO) in Euro-Atlantic climate variability. However, instrumental records of these leading patterns of variability are short, hampering a proper characterization of the atmospheric circulation beyond the mid-nineteenth century. In this work, we present the longest (1685-2014) observational-based records of winter NAO and EA indices as well as estimates of the North Atlantic eddy-driven jet stream speed and latitude for the same period. The time series display large variability from interannual to multidecadal time scales, with, for example, positive (negative) EA (NAO) phases dominating before 1750 (during much of the nineteenth century). By identifying winters with different combinations of NAO/EA phases in the twentieth century, our results highlight the additional role of EA in shaping the North Atlantic action centers and the European climate responses to NAO. The EA interference with the NAO signal is stronger in precipitation than in temperature and affects areas with strong responses to NAO such as Greenland and the western Mediterranean, which prevents simplistic relationships of natural proxies with NAO. The last three centuries uncover multidecadal periods dominated by specific NAO/EA states and substantial interannual-to-centennial variability in the North Atlantic jet stream, thus providing new evidence of the dynamics behind some outstanding periods. Transitions in the NAO/EA phase space have been recurrent and pin down long-lasting anomalies, such as the displacement of the North Atlantic action centers in the late twentieth century, besides some disagreements between NAO indices. This work is a contribution to UID/GEO/50019/2019-Instituto Dom Luiz. Javier Mellado-Cano was supported by the Portuguese Science Foundation (FCT) through the PhD fellowship PD/BD/106028/2014, and by the SpanishMinistry of Economy and Competitiveness through the PALEOSTRAT (CGL201569699-R) ... |
author2 |
Instituto Dom Luiz Fundação para a Ciência e a Tecnologia (Portugal) Ministerio de Economía y Competitividad (España) European Research Area for Climate Services Hernández, Armand |
format |
Article in Journal/Newspaper |
author |
Mellado-Cano, Javier Barriopedro, David García-Herrera, Ricardo Trigo, Ricardo M. Hernández, Armand |
author_facet |
Mellado-Cano, Javier Barriopedro, David García-Herrera, Ricardo Trigo, Ricardo M. Hernández, Armand |
author_sort |
Mellado-Cano, Javier |
title |
Examining the North Atlantic Oscillation, East Atlantic Pattern, and Jet Variability since 1685 |
title_short |
Examining the North Atlantic Oscillation, East Atlantic Pattern, and Jet Variability since 1685 |
title_full |
Examining the North Atlantic Oscillation, East Atlantic Pattern, and Jet Variability since 1685 |
title_fullStr |
Examining the North Atlantic Oscillation, East Atlantic Pattern, and Jet Variability since 1685 |
title_full_unstemmed |
Examining the North Atlantic Oscillation, East Atlantic Pattern, and Jet Variability since 1685 |
title_sort |
examining the north atlantic oscillation, east atlantic pattern, and jet variability since 1685 |
publisher |
American Meteorological Society |
publishDate |
2019 |
url |
http://hdl.handle.net/10261/190536 https://doi.org/10.1175/JCLI-D-19-0135.1 https://doi.org/10.13039/501100003329 https://doi.org/10.13039/501100011656 https://doi.org/10.13039/501100001871 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland North Atlantic North Atlantic oscillation |
genre_facet |
Greenland North Atlantic North Atlantic oscillation |
op_relation |
#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2015-69699-R Publisher's version https://doi-org.sire.ub.edu/10.1175/JCLI-D-19-0135.1 Sí Journal of Climate, 32: 6285–6298 (2019) 0894-8755 http://hdl.handle.net/10261/190536 doi:10.1175/JCLI-D-19-0135.1 1520-0442 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100011656 http://dx.doi.org/10.13039/501100001871 |
op_rights |
open |
op_doi |
https://doi.org/10.1175/JCLI-D-19-0135.110.13039/50110000332910.13039/50110001165610.13039/501100001871 |
container_title |
Journal of Climate |
container_volume |
32 |
container_issue |
19 |
container_start_page |
6285 |
op_container_end_page |
6298 |
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1790601049035243520 |