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...
Main Authors: | , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Basel : MDPI
2019
|
Subjects: | |
Online Access: | https://oa.tib.eu/renate/handle/123456789/6852 https://doi.org/10.34657/5899 |
id |
fttibhannoverren:oai:oa.tib.eu:123456789/6852 |
---|---|
record_format |
openpolar |
spelling |
fttibhannoverren:oai:oa.tib.eu:123456789/6852 2023-05-15T17:30:23+02:00 Implications of Winter NAO Flavors on Present and Future European Climate Rousi, Efi Rust, Henning W. Ulbrich, Uwe Anagnostopoulou, Christina 2019 application/pdf https://oa.tib.eu/renate/handle/123456789/6852 https://doi.org/10.34657/5899 eng eng Basel : MDPI ESSN:2225-1154 DOI:https://doi.org/10.3390/cli8010013 https://oa.tib.eu/renate/handle/123456789/6852 https://doi.org/10.34657/5899 CC BY 4.0 Unported https://creativecommons.org/licenses/by/4.0/ frei zugänglich CC-BY Climate 8 (2020), Nr. 1 ECHAM5 NAO flavors North Atlantic Oscillation Precipitation Self-Organizing Maps Temperature ddc:550 status-type:publishedVersion doc-type:article doc-type:Text 2019 fttibhannoverren https://doi.org/10.34657/5899 https://doi.org/10.3390/cli8010013 2022-05-07T06:45:42Z 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 Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover) |
institution |
Open Polar |
collection |
Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover) |
op_collection_id |
fttibhannoverren |
language |
English |
topic |
ECHAM5 NAO flavors North Atlantic Oscillation Precipitation Self-Organizing Maps Temperature ddc:550 |
spellingShingle |
ECHAM5 NAO flavors North Atlantic Oscillation Precipitation Self-Organizing Maps Temperature ddc: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 ddc: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://oa.tib.eu/renate/handle/123456789/6852 https://doi.org/10.34657/5899 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
Climate 8 (2020), Nr. 1 |
op_relation |
ESSN:2225-1154 DOI:https://doi.org/10.3390/cli8010013 https://oa.tib.eu/renate/handle/123456789/6852 https://doi.org/10.34657/5899 |
op_rights |
CC BY 4.0 Unported https://creativecommons.org/licenses/by/4.0/ frei zugänglich |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.34657/5899 https://doi.org/10.3390/cli8010013 |
_version_ |
1766126745549799424 |