Recent weakening in the winter ENSO teleconnection over the North Atlantic-European region
Abstract New observational evidence for variability of the atmospheric response to wintertime El Niño-Southern Oscillation (ENSO) is found. Using different approaches and datasets, a weakening in the recent ENSO teleconnection over the North Atlantic-European (NAE) region is demonstrated. Changes in...
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2021
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crspringernat:10.1007/s00382-021-05783-z 2023-05-15T15:05:48+02:00 Recent weakening in the winter ENSO teleconnection over the North Atlantic-European region Ivasić, Sara Herceg-Bulić, Ivana King, Martin P. The Research Council of Norway Hrvatska Zaklada za Znanost 2021 http://dx.doi.org/10.1007/s00382-021-05783-z https://link.springer.com/content/pdf/10.1007/s00382-021-05783-z.pdf https://link.springer.com/article/10.1007/s00382-021-05783-z/fulltext.html en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Climate Dynamics volume 57, issue 7-8, page 1953-1972 ISSN 0930-7575 1432-0894 Atmospheric Science journal-article 2021 crspringernat https://doi.org/10.1007/s00382-021-05783-z 2022-01-04T08:03:51Z Abstract New observational evidence for variability of the atmospheric response to wintertime El Niño-Southern Oscillation (ENSO) is found. Using different approaches and datasets, a weakening in the recent ENSO teleconnection over the North Atlantic-European (NAE) region is demonstrated. Changes in both pattern and strength of the teleconnection indicate a turning point in the 1970s with a shift from a response resembling the North Atlantic Oscillation (NAO) to an anomaly pattern orthogonal to NAO with very weak or statistically non-significant values; and to nearly non-existent teleconnection in the most recent decades. Results shows the importance of the background sea surface temperature (SST) state and sea-ice climatology having opposite effects in modulating the ENSO-NAE teleconnection. As indicated with targeted simulations, the recent change in the SST climatology in the Atlantic and Arctic has contributed to the weakening of the ENSO effect. The findings of this study can have implications on our understanding of modulations of ENSO teleconnections and ENSO as a source of predictability in the NAE sector. Article in Journal/Newspaper Arctic North Atlantic North Atlantic oscillation Sea ice Springer Nature (via Crossref) Arctic Climate Dynamics |
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Open Polar |
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Springer Nature (via Crossref) |
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crspringernat |
language |
English |
topic |
Atmospheric Science |
spellingShingle |
Atmospheric Science Ivasić, Sara Herceg-Bulić, Ivana King, Martin P. Recent weakening in the winter ENSO teleconnection over the North Atlantic-European region |
topic_facet |
Atmospheric Science |
description |
Abstract New observational evidence for variability of the atmospheric response to wintertime El Niño-Southern Oscillation (ENSO) is found. Using different approaches and datasets, a weakening in the recent ENSO teleconnection over the North Atlantic-European (NAE) region is demonstrated. Changes in both pattern and strength of the teleconnection indicate a turning point in the 1970s with a shift from a response resembling the North Atlantic Oscillation (NAO) to an anomaly pattern orthogonal to NAO with very weak or statistically non-significant values; and to nearly non-existent teleconnection in the most recent decades. Results shows the importance of the background sea surface temperature (SST) state and sea-ice climatology having opposite effects in modulating the ENSO-NAE teleconnection. As indicated with targeted simulations, the recent change in the SST climatology in the Atlantic and Arctic has contributed to the weakening of the ENSO effect. The findings of this study can have implications on our understanding of modulations of ENSO teleconnections and ENSO as a source of predictability in the NAE sector. |
author2 |
The Research Council of Norway Hrvatska Zaklada za Znanost |
format |
Article in Journal/Newspaper |
author |
Ivasić, Sara Herceg-Bulić, Ivana King, Martin P. |
author_facet |
Ivasić, Sara Herceg-Bulić, Ivana King, Martin P. |
author_sort |
Ivasić, Sara |
title |
Recent weakening in the winter ENSO teleconnection over the North Atlantic-European region |
title_short |
Recent weakening in the winter ENSO teleconnection over the North Atlantic-European region |
title_full |
Recent weakening in the winter ENSO teleconnection over the North Atlantic-European region |
title_fullStr |
Recent weakening in the winter ENSO teleconnection over the North Atlantic-European region |
title_full_unstemmed |
Recent weakening in the winter ENSO teleconnection over the North Atlantic-European region |
title_sort |
recent weakening in the winter enso teleconnection over the north atlantic-european region |
publisher |
Springer Science and Business Media LLC |
publishDate |
2021 |
url |
http://dx.doi.org/10.1007/s00382-021-05783-z https://link.springer.com/content/pdf/10.1007/s00382-021-05783-z.pdf https://link.springer.com/article/10.1007/s00382-021-05783-z/fulltext.html |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic North Atlantic North Atlantic oscillation Sea ice |
genre_facet |
Arctic North Atlantic North Atlantic oscillation Sea ice |
op_source |
Climate Dynamics volume 57, issue 7-8, page 1953-1972 ISSN 0930-7575 1432-0894 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1007/s00382-021-05783-z |
container_title |
Climate Dynamics |
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1766337435877244928 |