North Atlantic oscillation controls multidecadal changes in the North Tropical Atlantic−Pacific connection
By exciting subtropical teleconnections, sea surface temperature (SST) anomalies in the North Tropical Atlantic (NTA) during boreal spring can trigger El Niño-Southern Oscillation (ENSO) events in the following boreal winter, thereby providing a precursor for ENSO predictability. However, this NTA−E...
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ftoceanrep:oai:oceanrep.geomar.de:58038 2024-02-11T10:06:11+01:00 North Atlantic oscillation controls multidecadal changes in the North Tropical Atlantic−Pacific connection Ding, Ruiqiang Nnamchi, Hyacinth C. Yu, Jin-Yi Li, Tim Sun, Cheng Li, Jianping Tseng, Yu‐Heng Li, Xichen Xie, Fei Feng, Juan Ji, Kai Li, Xumin 2023-02-16 text https://oceanrep.geomar.de/id/eprint/58038/ https://oceanrep.geomar.de/id/eprint/58038/2/s41467-023-36564-3.pdf https://oceanrep.geomar.de/id/eprint/58038/1/41467_2023_36564_MOESM1_ESM.pdf https://doi.org/10.1038/s41467-023-36564-3 en eng Nature Research https://oceanrep.geomar.de/id/eprint/58038/2/s41467-023-36564-3.pdf https://oceanrep.geomar.de/id/eprint/58038/1/41467_2023_36564_MOESM1_ESM.pdf Ding, R., Nnamchi, H. C. , Yu, J. Y., Li, T., Sun, C., Li, J., Tseng, Y., Li, X., Xie, F., Feng, J., Ji, K. and Li, X. (2023) North Atlantic oscillation controls multidecadal changes in the North Tropical Atlantic−Pacific connection. Open Access Nature Communications, 14 (1). Art.Nr. 862. DOI 10.1038/s41467-023-36564-3 <https://doi.org/10.1038/s41467-023-36564-3>. doi:10.1038/s41467-023-36564-3 cc_by_4.0 info:eu-repo/semantics/openAccess Article PeerReviewed info:eu-repo/semantics/article 2023 ftoceanrep https://doi.org/10.1038/s41467-023-36564-3 2024-01-15T00:26:44Z By exciting subtropical teleconnections, sea surface temperature (SST) anomalies in the North Tropical Atlantic (NTA) during boreal spring can trigger El Niño-Southern Oscillation (ENSO) events in the following boreal winter, thereby providing a precursor for ENSO predictability. However, this NTA−ENSO connection is not stationary, and it varies considerably over multidecadal timescales, which cannot be directly explained by the Atlantic multidecadal oscillation or the global warming trend. Here we show that multidecadal changes in the NTA−ENSO connection are principally controlled by multidecadal variability associated with the North Atlantic Oscillation (NAO). During the positive phase of the NAO, the amplification of the NTA impact on ENSO mainly arises from strengthening of the boreal spring mean precipitation over the equatorial Atlantic and enhancement of the persistence of NTA SST anomalies, which enhance the NTA influence by exciting stronger and more persistent subtropical teleconnections. Our findings show that multidecadal variability of the NAO is key to understanding the impacts of the NTA SST on the tropical Pacific Ocean. Article in Journal/Newspaper North Atlantic North Atlantic oscillation OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Pacific Nature Communications 14 1 |
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Open Polar |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
By exciting subtropical teleconnections, sea surface temperature (SST) anomalies in the North Tropical Atlantic (NTA) during boreal spring can trigger El Niño-Southern Oscillation (ENSO) events in the following boreal winter, thereby providing a precursor for ENSO predictability. However, this NTA−ENSO connection is not stationary, and it varies considerably over multidecadal timescales, which cannot be directly explained by the Atlantic multidecadal oscillation or the global warming trend. Here we show that multidecadal changes in the NTA−ENSO connection are principally controlled by multidecadal variability associated with the North Atlantic Oscillation (NAO). During the positive phase of the NAO, the amplification of the NTA impact on ENSO mainly arises from strengthening of the boreal spring mean precipitation over the equatorial Atlantic and enhancement of the persistence of NTA SST anomalies, which enhance the NTA influence by exciting stronger and more persistent subtropical teleconnections. Our findings show that multidecadal variability of the NAO is key to understanding the impacts of the NTA SST on the tropical Pacific Ocean. |
format |
Article in Journal/Newspaper |
author |
Ding, Ruiqiang Nnamchi, Hyacinth C. Yu, Jin-Yi Li, Tim Sun, Cheng Li, Jianping Tseng, Yu‐Heng Li, Xichen Xie, Fei Feng, Juan Ji, Kai Li, Xumin |
spellingShingle |
Ding, Ruiqiang Nnamchi, Hyacinth C. Yu, Jin-Yi Li, Tim Sun, Cheng Li, Jianping Tseng, Yu‐Heng Li, Xichen Xie, Fei Feng, Juan Ji, Kai Li, Xumin North Atlantic oscillation controls multidecadal changes in the North Tropical Atlantic−Pacific connection |
author_facet |
Ding, Ruiqiang Nnamchi, Hyacinth C. Yu, Jin-Yi Li, Tim Sun, Cheng Li, Jianping Tseng, Yu‐Heng Li, Xichen Xie, Fei Feng, Juan Ji, Kai Li, Xumin |
author_sort |
Ding, Ruiqiang |
title |
North Atlantic oscillation controls multidecadal changes in the North Tropical Atlantic−Pacific connection |
title_short |
North Atlantic oscillation controls multidecadal changes in the North Tropical Atlantic−Pacific connection |
title_full |
North Atlantic oscillation controls multidecadal changes in the North Tropical Atlantic−Pacific connection |
title_fullStr |
North Atlantic oscillation controls multidecadal changes in the North Tropical Atlantic−Pacific connection |
title_full_unstemmed |
North Atlantic oscillation controls multidecadal changes in the North Tropical Atlantic−Pacific connection |
title_sort |
north atlantic oscillation controls multidecadal changes in the north tropical atlantic−pacific connection |
publisher |
Nature Research |
publishDate |
2023 |
url |
https://oceanrep.geomar.de/id/eprint/58038/ https://oceanrep.geomar.de/id/eprint/58038/2/s41467-023-36564-3.pdf https://oceanrep.geomar.de/id/eprint/58038/1/41467_2023_36564_MOESM1_ESM.pdf https://doi.org/10.1038/s41467-023-36564-3 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
https://oceanrep.geomar.de/id/eprint/58038/2/s41467-023-36564-3.pdf https://oceanrep.geomar.de/id/eprint/58038/1/41467_2023_36564_MOESM1_ESM.pdf Ding, R., Nnamchi, H. C. , Yu, J. Y., Li, T., Sun, C., Li, J., Tseng, Y., Li, X., Xie, F., Feng, J., Ji, K. and Li, X. (2023) North Atlantic oscillation controls multidecadal changes in the North Tropical Atlantic−Pacific connection. Open Access Nature Communications, 14 (1). Art.Nr. 862. DOI 10.1038/s41467-023-36564-3 <https://doi.org/10.1038/s41467-023-36564-3>. doi:10.1038/s41467-023-36564-3 |
op_rights |
cc_by_4.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/s41467-023-36564-3 |
container_title |
Nature Communications |
container_volume |
14 |
container_issue |
1 |
_version_ |
1790603740265316352 |