Reconciling North Atlantic climate modes: revised monthly indices for the East Atlantic and the Scandinavian patterns beyond the 20th century
Climate variability in the North Atlantic sector is commonly ascribed to the North Atlantic Oscillation. However, recent studies have shown that taking into account the second and third mode of variability (namely the East Atlantic – EA – and the Scandinavian – SCA – patterns) greatly improves our u...
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Copernicus Publications
2018
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ftunivreading:oai:centaur.reading.ac.uk:81477 2024-06-23T07:54:56+00:00 Reconciling North Atlantic climate modes: revised monthly indices for the East Atlantic and the Scandinavian patterns beyond the 20th century Comas-Bru, Laia Hernández, Armand 2018 text https://centaur.reading.ac.uk/81477/ https://centaur.reading.ac.uk/81477/13/essd-10-2329-2018.pdf https://centaur.reading.ac.uk/81477/1/Comas-Bru%20and%20Hernandez_essd-2018-86_accepted%20version_repository.pdf https://centaur.reading.ac.uk/81477/2/Comas-Bru%20and%20Hernandez_Supp%20Material_essd-2018-86_repository.pdf en eng Copernicus Publications https://centaur.reading.ac.uk/81477/13/essd-10-2329-2018.pdf https://centaur.reading.ac.uk/81477/1/Comas-Bru%20and%20Hernandez_essd-2018-86_accepted%20version_repository.pdf https://centaur.reading.ac.uk/81477/2/Comas-Bru%20and%20Hernandez_Supp%20Material_essd-2018-86_repository.pdf Comas-Bru, L. <https://centaur.reading.ac.uk/view/creators/90009442.html> orcid:0000-0002-7882-4996 and Hernández, A. (2018) Reconciling North Atlantic climate modes: revised monthly indices for the East Atlantic and the Scandinavian patterns beyond the 20th century. Earth System Science Data, 10 (4). pp. 2329-2344. ISSN 1866-3516 doi: https://doi.org/10.5194/essd-10-2329-2018 <https://doi.org/10.5194/essd-10-2329-2018> cc_by_4 Article PeerReviewed 2018 ftunivreading https://doi.org/10.5194/essd-10-2329-2018 2024-06-11T15:08:23Z Climate variability in the North Atlantic sector is commonly ascribed to the North Atlantic Oscillation. However, recent studies have shown that taking into account the second and third mode of variability (namely the East Atlantic – EA – and the Scandinavian – SCA – patterns) greatly improves our understanding of their controlling mechanisms, as well as their impact on climate. The most commonly used EA and SCA indices span the period from 1950 to present, which is too short, for example, to calibrate palaeoclimate records or assess their variability over multi-decadal scales. To tackle this, here, we create new EOF-based (empirical orthogonal function) monthly EA and SCA indices covering the period from 1851 to present, and compare them with their equivalent instrumental indices. We also review and discuss the value of these new records and provide insights into the reasons why different sources of data may give slightly different time series. Furthermore, we demonstrate that using these patterns to explain climate variability beyond the winter season needs to be done carefully due to their non-stationary behaviour. The datasets are available at 10.1594/PANGAEA.892769. Article in Journal/Newspaper North Atlantic North Atlantic oscillation CentAUR: Central Archive at the University of Reading Earth System Science Data 10 4 2329 2344 |
institution |
Open Polar |
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CentAUR: Central Archive at the University of Reading |
op_collection_id |
ftunivreading |
language |
English |
description |
Climate variability in the North Atlantic sector is commonly ascribed to the North Atlantic Oscillation. However, recent studies have shown that taking into account the second and third mode of variability (namely the East Atlantic – EA – and the Scandinavian – SCA – patterns) greatly improves our understanding of their controlling mechanisms, as well as their impact on climate. The most commonly used EA and SCA indices span the period from 1950 to present, which is too short, for example, to calibrate palaeoclimate records or assess their variability over multi-decadal scales. To tackle this, here, we create new EOF-based (empirical orthogonal function) monthly EA and SCA indices covering the period from 1851 to present, and compare them with their equivalent instrumental indices. We also review and discuss the value of these new records and provide insights into the reasons why different sources of data may give slightly different time series. Furthermore, we demonstrate that using these patterns to explain climate variability beyond the winter season needs to be done carefully due to their non-stationary behaviour. The datasets are available at 10.1594/PANGAEA.892769. |
format |
Article in Journal/Newspaper |
author |
Comas-Bru, Laia Hernández, Armand |
spellingShingle |
Comas-Bru, Laia Hernández, Armand Reconciling North Atlantic climate modes: revised monthly indices for the East Atlantic and the Scandinavian patterns beyond the 20th century |
author_facet |
Comas-Bru, Laia Hernández, Armand |
author_sort |
Comas-Bru, Laia |
title |
Reconciling North Atlantic climate modes: revised monthly indices for the East Atlantic and the Scandinavian patterns beyond the 20th century |
title_short |
Reconciling North Atlantic climate modes: revised monthly indices for the East Atlantic and the Scandinavian patterns beyond the 20th century |
title_full |
Reconciling North Atlantic climate modes: revised monthly indices for the East Atlantic and the Scandinavian patterns beyond the 20th century |
title_fullStr |
Reconciling North Atlantic climate modes: revised monthly indices for the East Atlantic and the Scandinavian patterns beyond the 20th century |
title_full_unstemmed |
Reconciling North Atlantic climate modes: revised monthly indices for the East Atlantic and the Scandinavian patterns beyond the 20th century |
title_sort |
reconciling north atlantic climate modes: revised monthly indices for the east atlantic and the scandinavian patterns beyond the 20th century |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://centaur.reading.ac.uk/81477/ https://centaur.reading.ac.uk/81477/13/essd-10-2329-2018.pdf https://centaur.reading.ac.uk/81477/1/Comas-Bru%20and%20Hernandez_essd-2018-86_accepted%20version_repository.pdf https://centaur.reading.ac.uk/81477/2/Comas-Bru%20and%20Hernandez_Supp%20Material_essd-2018-86_repository.pdf |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
https://centaur.reading.ac.uk/81477/13/essd-10-2329-2018.pdf https://centaur.reading.ac.uk/81477/1/Comas-Bru%20and%20Hernandez_essd-2018-86_accepted%20version_repository.pdf https://centaur.reading.ac.uk/81477/2/Comas-Bru%20and%20Hernandez_Supp%20Material_essd-2018-86_repository.pdf Comas-Bru, L. <https://centaur.reading.ac.uk/view/creators/90009442.html> orcid:0000-0002-7882-4996 and Hernández, A. (2018) Reconciling North Atlantic climate modes: revised monthly indices for the East Atlantic and the Scandinavian patterns beyond the 20th century. Earth System Science Data, 10 (4). pp. 2329-2344. ISSN 1866-3516 doi: https://doi.org/10.5194/essd-10-2329-2018 <https://doi.org/10.5194/essd-10-2329-2018> |
op_rights |
cc_by_4 |
op_doi |
https://doi.org/10.5194/essd-10-2329-2018 |
container_title |
Earth System Science Data |
container_volume |
10 |
container_issue |
4 |
container_start_page |
2329 |
op_container_end_page |
2344 |
_version_ |
1802647290841661440 |