Climate Dynamics
A nonlinear projection of the tropical Pacific sea surface temperature anomalies (SSTA) onto the Northern Hemisphere winter sea level pressure (SLP) anomalies by neural networks (NN) was performed to investigate the nonlinear association between ENSO and the Euro-Atlantic winter climate. While the l...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.217.3119 2023-05-15T17:29:07+02:00 Climate Dynamics Aiming Wu William W. Hsieh The Pennsylvania State University CiteSeerX Archives 2004 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.217.3119 http://www.ocgy.ubc.ca/~william/Pubs/Wu_CD3.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.217.3119 http://www.ocgy.ubc.ca/~william/Pubs/Wu_CD3.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.ocgy.ubc.ca/~william/Pubs/Wu_CD3.pdf text 2004 ftciteseerx 2016-01-07T18:06:17Z A nonlinear projection of the tropical Pacific sea surface temperature anomalies (SSTA) onto the Northern Hemisphere winter sea level pressure (SLP) anomalies by neural networks (NN) was performed to investigate the nonlinear association between ENSO and the Euro-Atlantic winter climate. While the linear impact of ENSO on the Euro-Atlantic winter SLP is weak, the NN projection reveals statistically significant SLP anomalies over the Euro-Atlantic sector during both extreme cold and warm ENSO episodes, suggesting that the Euro-Atlantic climate mainly responds to ENSO nonlinearly. The nonlinear response, mainly a quadratic response to the SSTA, reveals that regardless of the sign of the SSTA, positive SLP anomalies are found over the North Atlantic, stretching from eastern Canada to Europe (with anomaly center located just northwestward of Portugal), and negative anomalies centered over Scandinavia and Norwegian Sea, consistent with the excitation of the positive North Atlantic Oscillation (NAO) pattern. 2 1 Text North Atlantic North Atlantic oscillation Norwegian Sea Unknown Canada Norwegian Sea Pacific |
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ftciteseerx |
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English |
description |
A nonlinear projection of the tropical Pacific sea surface temperature anomalies (SSTA) onto the Northern Hemisphere winter sea level pressure (SLP) anomalies by neural networks (NN) was performed to investigate the nonlinear association between ENSO and the Euro-Atlantic winter climate. While the linear impact of ENSO on the Euro-Atlantic winter SLP is weak, the NN projection reveals statistically significant SLP anomalies over the Euro-Atlantic sector during both extreme cold and warm ENSO episodes, suggesting that the Euro-Atlantic climate mainly responds to ENSO nonlinearly. The nonlinear response, mainly a quadratic response to the SSTA, reveals that regardless of the sign of the SSTA, positive SLP anomalies are found over the North Atlantic, stretching from eastern Canada to Europe (with anomaly center located just northwestward of Portugal), and negative anomalies centered over Scandinavia and Norwegian Sea, consistent with the excitation of the positive North Atlantic Oscillation (NAO) pattern. 2 1 |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Aiming Wu William W. Hsieh |
spellingShingle |
Aiming Wu William W. Hsieh Climate Dynamics |
author_facet |
Aiming Wu William W. Hsieh |
author_sort |
Aiming Wu |
title |
Climate Dynamics |
title_short |
Climate Dynamics |
title_full |
Climate Dynamics |
title_fullStr |
Climate Dynamics |
title_full_unstemmed |
Climate Dynamics |
title_sort |
climate dynamics |
publishDate |
2004 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.217.3119 http://www.ocgy.ubc.ca/~william/Pubs/Wu_CD3.pdf |
geographic |
Canada Norwegian Sea Pacific |
geographic_facet |
Canada Norwegian Sea Pacific |
genre |
North Atlantic North Atlantic oscillation Norwegian Sea |
genre_facet |
North Atlantic North Atlantic oscillation Norwegian Sea |
op_source |
http://www.ocgy.ubc.ca/~william/Pubs/Wu_CD3.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.217.3119 http://www.ocgy.ubc.ca/~william/Pubs/Wu_CD3.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766122722162638848 |