ENSO impact on midlatitude circulation patterns in future climate change projections
The remote influence of the leading mode of interannual variability in the Tropics, the El Niño/Southern Oscillation (ENSO), on the northern hemispheric midlatitude circulation in future climate is investigated. For this, IPCC SRES scenarios of the latest version of the coupled climate model ECHAM5/...
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ftpubman:oai:pure.mpg.de:item_994629 2023-08-27T04:10:51+02:00 ENSO impact on midlatitude circulation patterns in future climate change projections Mueller, W. Roeckner, E. 2006-03 application/pdf http://hdl.handle.net/11858/00-001M-0000-0011-FCEF-C http://hdl.handle.net/11858/00-001M-0000-0011-FCEE-E eng eng info:eu-repo/semantics/altIdentifier/doi/10.1029/2005GL025032 http://hdl.handle.net/11858/00-001M-0000-0011-FCEF-C http://hdl.handle.net/11858/00-001M-0000-0011-FCEE-E info:eu-repo/semantics/openAccess Geophysical Research Letters info:eu-repo/semantics/article 2006 ftpubman https://doi.org/10.1029/2005GL025032 2023-08-02T01:34:53Z The remote influence of the leading mode of interannual variability in the Tropics, the El Niño/Southern Oscillation (ENSO), on the northern hemispheric midlatitude circulation in future climate is investigated. For this, IPCC SRES scenarios of the latest version of the coupled climate model ECHAM5/MPI-OM are used. In ensembles of future climate change projections it is found, that a changing state of ENSO with increased variability has a pronounced influence on the dominant midlatitude circulation pattern, namely the Pacific North America (PNA) pattern and the North Atlantic Oscillation (NAO). More explicitly, in the 21st and 22nd century, a positive (negative) phase of ENSO is more likely followed by a positive (negative) PNA index and negative (positive) NAO index than it is observed in the 20th century. Correlation coefficients between the winter mean Niño3.4 index and the NAO index increase substantially from the 20th century Article in Journal/Newspaper North Atlantic North Atlantic oscillation Max Planck Society: MPG.PuRe Pacific Geophysical Research Letters 33 5 |
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Open Polar |
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Max Planck Society: MPG.PuRe |
op_collection_id |
ftpubman |
language |
English |
description |
The remote influence of the leading mode of interannual variability in the Tropics, the El Niño/Southern Oscillation (ENSO), on the northern hemispheric midlatitude circulation in future climate is investigated. For this, IPCC SRES scenarios of the latest version of the coupled climate model ECHAM5/MPI-OM are used. In ensembles of future climate change projections it is found, that a changing state of ENSO with increased variability has a pronounced influence on the dominant midlatitude circulation pattern, namely the Pacific North America (PNA) pattern and the North Atlantic Oscillation (NAO). More explicitly, in the 21st and 22nd century, a positive (negative) phase of ENSO is more likely followed by a positive (negative) PNA index and negative (positive) NAO index than it is observed in the 20th century. Correlation coefficients between the winter mean Niño3.4 index and the NAO index increase substantially from the 20th century |
format |
Article in Journal/Newspaper |
author |
Mueller, W. Roeckner, E. |
spellingShingle |
Mueller, W. Roeckner, E. ENSO impact on midlatitude circulation patterns in future climate change projections |
author_facet |
Mueller, W. Roeckner, E. |
author_sort |
Mueller, W. |
title |
ENSO impact on midlatitude circulation patterns in future climate change projections |
title_short |
ENSO impact on midlatitude circulation patterns in future climate change projections |
title_full |
ENSO impact on midlatitude circulation patterns in future climate change projections |
title_fullStr |
ENSO impact on midlatitude circulation patterns in future climate change projections |
title_full_unstemmed |
ENSO impact on midlatitude circulation patterns in future climate change projections |
title_sort |
enso impact on midlatitude circulation patterns in future climate change projections |
publishDate |
2006 |
url |
http://hdl.handle.net/11858/00-001M-0000-0011-FCEF-C http://hdl.handle.net/11858/00-001M-0000-0011-FCEE-E |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
Geophysical Research Letters |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2005GL025032 http://hdl.handle.net/11858/00-001M-0000-0011-FCEF-C http://hdl.handle.net/11858/00-001M-0000-0011-FCEE-E |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2005GL025032 |
container_title |
Geophysical Research Letters |
container_volume |
33 |
container_issue |
5 |
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1775353209680822272 |