Implications of Winter NAO Flavors on Present and Future European Climate
The North Atlantic Oscillation (NAO), a basic variability mode in the Northern Hemisphere, undergoes changes in its temporal and spatial characteristics, with significant implications on European climate. In this paper, different NAO flavors are distinguished for winter in simulations of a Coupled A...
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Online Access: | https://dx.doi.org/10.34657/5899 https://oa.tib.eu/renate/handle/123456789/6852 |
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ftdatacite:10.34657/5899 2023-05-15T17:30:22+02:00 Implications of Winter NAO Flavors on Present and Future European Climate Rousi, Efi Rust, Henning W. Ulbrich, Uwe Anagnostopoulou, Christina 2019 https://dx.doi.org/10.34657/5899 https://oa.tib.eu/renate/handle/123456789/6852 unknown Basel : MDPI Creative Commons Attribution 4.0 International CC BY 4.0 Unported https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY ECHAM5 NAO flavors North Atlantic Oscillation Precipitation Self-Organizing Maps Temperature 550 CreativeWork article Other 2019 ftdatacite https://doi.org/10.34657/5899 2022-03-10T12:44:35Z The North Atlantic Oscillation (NAO), a basic variability mode in the Northern Hemisphere, undergoes changes in its temporal and spatial characteristics, with significant implications on European climate. In this paper, different NAO flavors are distinguished for winter in simulations of a Coupled Atmosphere-Ocean GCM, using Self-Organizing Maps, a topology preserving clustering algorithm. These flavors refer to various sub-forms of the NAO pattern, reflecting the range of positions occupied by its action centers, the Icelandic Low and the Azores High. After having defined the NAO flavors, composites of winter temperature and precipitation over Europe are created for each one of them. The results reveal significant differences between NAO flavors in terms of their effects on the European climate. Generally, the eastwardly shifted NAO patterns induce a stronger than average influence on European temperatures. In contrast, the effects of NAO flavors on European precipitation anomalies are less coherent, with various areas responding differently. These results confirm that not only the temporal, but also the spatial variability of NAO is important in regulating European climate. © 2020 by the authors. Article in Journal/Newspaper North Atlantic North Atlantic oscillation DataCite Metadata Store (German National Library of Science and Technology) |
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ECHAM5 NAO flavors North Atlantic Oscillation Precipitation Self-Organizing Maps Temperature 550 |
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ECHAM5 NAO flavors North Atlantic Oscillation Precipitation Self-Organizing Maps Temperature 550 Rousi, Efi Rust, Henning W. Ulbrich, Uwe Anagnostopoulou, Christina Implications of Winter NAO Flavors on Present and Future European Climate |
topic_facet |
ECHAM5 NAO flavors North Atlantic Oscillation Precipitation Self-Organizing Maps Temperature 550 |
description |
The North Atlantic Oscillation (NAO), a basic variability mode in the Northern Hemisphere, undergoes changes in its temporal and spatial characteristics, with significant implications on European climate. In this paper, different NAO flavors are distinguished for winter in simulations of a Coupled Atmosphere-Ocean GCM, using Self-Organizing Maps, a topology preserving clustering algorithm. These flavors refer to various sub-forms of the NAO pattern, reflecting the range of positions occupied by its action centers, the Icelandic Low and the Azores High. After having defined the NAO flavors, composites of winter temperature and precipitation over Europe are created for each one of them. The results reveal significant differences between NAO flavors in terms of their effects on the European climate. Generally, the eastwardly shifted NAO patterns induce a stronger than average influence on European temperatures. In contrast, the effects of NAO flavors on European precipitation anomalies are less coherent, with various areas responding differently. These results confirm that not only the temporal, but also the spatial variability of NAO is important in regulating European climate. © 2020 by the authors. |
format |
Article in Journal/Newspaper |
author |
Rousi, Efi Rust, Henning W. Ulbrich, Uwe Anagnostopoulou, Christina |
author_facet |
Rousi, Efi Rust, Henning W. Ulbrich, Uwe Anagnostopoulou, Christina |
author_sort |
Rousi, Efi |
title |
Implications of Winter NAO Flavors on Present and Future European Climate |
title_short |
Implications of Winter NAO Flavors on Present and Future European Climate |
title_full |
Implications of Winter NAO Flavors on Present and Future European Climate |
title_fullStr |
Implications of Winter NAO Flavors on Present and Future European Climate |
title_full_unstemmed |
Implications of Winter NAO Flavors on Present and Future European Climate |
title_sort |
implications of winter nao flavors on present and future european climate |
publisher |
Basel : MDPI |
publishDate |
2019 |
url |
https://dx.doi.org/10.34657/5899 https://oa.tib.eu/renate/handle/123456789/6852 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_rights |
Creative Commons Attribution 4.0 International CC BY 4.0 Unported https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.34657/5899 |
_version_ |
1766126728162312192 |