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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ftdatacite:10.17169/refubium-26354 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 2020 https://dx.doi.org/10.17169/refubium-26354 https://refubium.fu-berlin.de/handle/fub188/26597 unknown Freie Universität Berlin https://creativecommons.org/licenses/by/4.0 CC-BY North Atlantic Oscillation NAO flavors temperature precipitation Self-Organizing Maps ECHAM5 500 Naturwissenschaften und Mathematik550 Geowissenschaften, Geologie551 Geologie, Hydrologie, Meteorologie Text article-journal Wissenschaftlicher Artikel ScholarlyArticle 2020 ftdatacite https://doi.org/10.17169/refubium-26354 2021-11-05T12:55:41Z 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. Text North Atlantic North Atlantic oscillation DataCite Metadata Store (German National Library of Science and Technology) |
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North Atlantic Oscillation NAO flavors temperature precipitation Self-Organizing Maps ECHAM5 500 Naturwissenschaften und Mathematik550 Geowissenschaften, Geologie551 Geologie, Hydrologie, Meteorologie |
spellingShingle |
North Atlantic Oscillation NAO flavors temperature precipitation Self-Organizing Maps ECHAM5 500 Naturwissenschaften und Mathematik550 Geowissenschaften, Geologie551 Geologie, Hydrologie, Meteorologie Rousi, Efi Rust, Henning W. Ulbrich, Uwe Anagnostopoulou, Christina Implications of Winter NAO Flavors on Present and Future European Climate |
topic_facet |
North Atlantic Oscillation NAO flavors temperature precipitation Self-Organizing Maps ECHAM5 500 Naturwissenschaften und Mathematik550 Geowissenschaften, Geologie551 Geologie, Hydrologie, Meteorologie |
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. |
format |
Text |
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 |
Freie Universität Berlin |
publishDate |
2020 |
url |
https://dx.doi.org/10.17169/refubium-26354 https://refubium.fu-berlin.de/handle/fub188/26597 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_rights |
https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.17169/refubium-26354 |
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1766126740800798720 |