Salient difference of sea surface temperature over the North Atlantic in the spring following three super El Niño events
International audience Despite similar evolution of Niño3.4 index for three strong El Niño events in the tropical Pacific in 1982–1983, 1997–1998 and 2015–2016, divergent sea surface temperature anomalies (SSTAs) were observed in the North Atlantic (NA) in spring following El Niño peak. Strong telec...
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ftinspolytechpar:oai:HAL:hal-02942019v1 2024-06-16T07:41:41+00:00 Salient difference of sea surface temperature over the North Atlantic in the spring following three super El Niño events Yu, Jinhua Zhang, Xuyu Li, Laurent Shi, Chunhua Ye, Yangbo Key Laboratory of Meteorological Disaster Nanjing University (KLME - NUIST) Nanjing University of Information Science and Technology (NUIST) Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL) 2020 https://hal.sorbonne-universite.fr/hal-02942019 https://hal.sorbonne-universite.fr/hal-02942019/document https://hal.sorbonne-universite.fr/hal-02942019/file/Yu_2020_Environ._Res._Lett._15_094040.pdf https://doi.org/10.1088/1748-9326/aba20a en eng HAL CCSD IOP Publishing info:eu-repo/semantics/altIdentifier/doi/10.1088/1748-9326/aba20a hal-02942019 https://hal.sorbonne-universite.fr/hal-02942019 https://hal.sorbonne-universite.fr/hal-02942019/document https://hal.sorbonne-universite.fr/hal-02942019/file/Yu_2020_Environ._Res._Lett._15_094040.pdf doi:10.1088/1748-9326/aba20a info:eu-repo/semantics/OpenAccess ISSN: 1748-9326 Environmental Research Letters https://hal.sorbonne-universite.fr/hal-02942019 Environmental Research Letters, 2020, 15 (9), pp.094040. ⟨10.1088/1748-9326/aba20a⟩ North Atlantic SSTA super El Niño events teleconnection [SDU.STU.ME]Sciences of the Universe [physics]/Earth Sciences/Meteorology [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2020 ftinspolytechpar https://doi.org/10.1088/1748-9326/aba20a 2024-05-19T23:44:35Z International audience Despite similar evolution of Niño3.4 index for three strong El Niño events in the tropical Pacific in 1982–1983, 1997–1998 and 2015–2016, divergent sea surface temperature anomalies (SSTAs) were observed in the North Atlantic (NA) in spring following El Niño peak. Strong teleconnection occurred for the first two events in 1982–1983 and 1997–1998, leading to a negative phase of a North Atlantic Oscillation-like circulation over the extratropical NA, and thus a positive tripolar SSTA pattern in the NA. But the teleconnection was weak for the case of 2015–2016 El Niño, the SSTA in spring 2016 in NA being mainly created and maintained by the preconditioning of the NA basin and local atmosphere-ocean interactions. The salient difference among the three events resides in their ways to operate the teleconnection linking the central-eastern equatorial Pacific and the subtropical eastern North Pacific to the extratropical NA, which would be a key to explain the different impacts of the three exceptional El Niño events. It is furthermore shown that the reduced anomalous westerlies over Central America along 30° N around the peak time of 2015–2016 El Niño play a role of inhibition for an efficient Rossby wave energy propagation from the tropics, eastward into the Gulf of Mexico and northward into midlatitudes in the western NA. Article in Journal/Newspaper North Atlantic North Atlantic oscillation HAL de l'Institut Polytechnique de Paris Pacific Environmental Research Letters 15 9 094040 |
institution |
Open Polar |
collection |
HAL de l'Institut Polytechnique de Paris |
op_collection_id |
ftinspolytechpar |
language |
English |
topic |
North Atlantic SSTA super El Niño events teleconnection [SDU.STU.ME]Sciences of the Universe [physics]/Earth Sciences/Meteorology [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
North Atlantic SSTA super El Niño events teleconnection [SDU.STU.ME]Sciences of the Universe [physics]/Earth Sciences/Meteorology [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Yu, Jinhua Zhang, Xuyu Li, Laurent Shi, Chunhua Ye, Yangbo Salient difference of sea surface temperature over the North Atlantic in the spring following three super El Niño events |
topic_facet |
North Atlantic SSTA super El Niño events teleconnection [SDU.STU.ME]Sciences of the Universe [physics]/Earth Sciences/Meteorology [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience Despite similar evolution of Niño3.4 index for three strong El Niño events in the tropical Pacific in 1982–1983, 1997–1998 and 2015–2016, divergent sea surface temperature anomalies (SSTAs) were observed in the North Atlantic (NA) in spring following El Niño peak. Strong teleconnection occurred for the first two events in 1982–1983 and 1997–1998, leading to a negative phase of a North Atlantic Oscillation-like circulation over the extratropical NA, and thus a positive tripolar SSTA pattern in the NA. But the teleconnection was weak for the case of 2015–2016 El Niño, the SSTA in spring 2016 in NA being mainly created and maintained by the preconditioning of the NA basin and local atmosphere-ocean interactions. The salient difference among the three events resides in their ways to operate the teleconnection linking the central-eastern equatorial Pacific and the subtropical eastern North Pacific to the extratropical NA, which would be a key to explain the different impacts of the three exceptional El Niño events. It is furthermore shown that the reduced anomalous westerlies over Central America along 30° N around the peak time of 2015–2016 El Niño play a role of inhibition for an efficient Rossby wave energy propagation from the tropics, eastward into the Gulf of Mexico and northward into midlatitudes in the western NA. |
author2 |
Key Laboratory of Meteorological Disaster Nanjing University (KLME - NUIST) Nanjing University of Information Science and Technology (NUIST) Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL) |
format |
Article in Journal/Newspaper |
author |
Yu, Jinhua Zhang, Xuyu Li, Laurent Shi, Chunhua Ye, Yangbo |
author_facet |
Yu, Jinhua Zhang, Xuyu Li, Laurent Shi, Chunhua Ye, Yangbo |
author_sort |
Yu, Jinhua |
title |
Salient difference of sea surface temperature over the North Atlantic in the spring following three super El Niño events |
title_short |
Salient difference of sea surface temperature over the North Atlantic in the spring following three super El Niño events |
title_full |
Salient difference of sea surface temperature over the North Atlantic in the spring following three super El Niño events |
title_fullStr |
Salient difference of sea surface temperature over the North Atlantic in the spring following three super El Niño events |
title_full_unstemmed |
Salient difference of sea surface temperature over the North Atlantic in the spring following three super El Niño events |
title_sort |
salient difference of sea surface temperature over the north atlantic in the spring following three super el niño events |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.sorbonne-universite.fr/hal-02942019 https://hal.sorbonne-universite.fr/hal-02942019/document https://hal.sorbonne-universite.fr/hal-02942019/file/Yu_2020_Environ._Res._Lett._15_094040.pdf https://doi.org/10.1088/1748-9326/aba20a |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
ISSN: 1748-9326 Environmental Research Letters https://hal.sorbonne-universite.fr/hal-02942019 Environmental Research Letters, 2020, 15 (9), pp.094040. ⟨10.1088/1748-9326/aba20a⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1088/1748-9326/aba20a hal-02942019 https://hal.sorbonne-universite.fr/hal-02942019 https://hal.sorbonne-universite.fr/hal-02942019/document https://hal.sorbonne-universite.fr/hal-02942019/file/Yu_2020_Environ._Res._Lett._15_094040.pdf doi:10.1088/1748-9326/aba20a |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1088/1748-9326/aba20a |
container_title |
Environmental Research Letters |
container_volume |
15 |
container_issue |
9 |
container_start_page |
094040 |
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1802008962248212480 |