Role of Tropical Atlantic SST Variability as a Modulator of El Nino Teleconnections
The present study suggests that the off-equatorial North Atlantic (NATL) SST warming plays a significant role in modulating El Nio teleconnection and its impact on the North Atlantic and European regions. The El Nio events accompanied by NATL SST warming exhibit south-north dipole pattern over the W...
Published in: | Asia-Pacific Journal of Atmospheric Sciences |
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Online Access: | https://oasis.postech.ac.kr/handle/2014.oak/27307 https://doi.org/10.1007/S13143-014-0013-X |
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ftponangunivst:oai:oasis.postech.ac.kr:2014.oak/27307 2023-05-15T17:26:19+02:00 Role of Tropical Atlantic SST Variability as a Modulator of El Nino Teleconnections Ham, YG Sung, MK An, SI Schubert, S Kug, JS 환경공학부 10112320 Kug, JS 2014-07-03 https://oasis.postech.ac.kr/handle/2014.oak/27307 https://doi.org/10.1007/S13143-014-0013-X English eng Korean Meteorological Society ASIA-PACIFIC JOURNAL OF ATMOSPHERIC SCIENCES 50 1 15 SCI Meteorology & Atmospheric Sciences 1976-7633 2014-OAK-0000029980 https://oasis.postech.ac.kr/handle/2014.oak/27307 doi:10.1007/S13143-014-0013-X 16287 ASIA-PACIFIC JOURNAL OF ATMOSPHERIC SCIENCES, v.50, no.1, pp.1 - 15 000336812300001 2-s2.0-84904244802 SEA-SURFACE TEMPERATURE ATMOSPHERE OCEAN INTERACTION NORTH-ATLANTIC SOUTHERN-OSCILLATION WARM POOL CLIMATE MODELS NINO PACIFIC ENSO ANOMALIES NAO teleconnection North Tropical Atlantic Article ART 2014 ftponangunivst https://doi.org/10.1007/S13143-014-0013-X 2022-10-20T20:17:45Z The present study suggests that the off-equatorial North Atlantic (NATL) SST warming plays a significant role in modulating El Nio teleconnection and its impact on the North Atlantic and European regions. The El Nio events accompanied by NATL SST warming exhibit south-north dipole pattern over the Western Europe to Atlantic, while the ENSO teleconnection pattern without NATL warming exhibits a Rossby wave-like pattern confined over the North Pacific and western Atlantic. Especially, the El Nio events with NATL warming show positive (negative) geopotential-height anomalies over the North Atlantic (Western Europe) which resemble the negative phase of the NAO. Consistently, it is shown using a simple statistical model that NATL SSTA in addition to the tropical Pacific SSTA leads to better prediction on regional climate variation over the North Atlantic and European regions. This role of NATL SST on ENSO teleconnection is also validated and discussed in a long term simulation of coupled global circulation model (CGCM). X 1 1 7 5 scie scopus kci Article in Journal/Newspaper North Atlantic Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS) Pacific Asia-Pacific Journal of Atmospheric Sciences 50 3 247 261 |
institution |
Open Polar |
collection |
Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS) |
op_collection_id |
ftponangunivst |
language |
English |
topic |
SEA-SURFACE TEMPERATURE ATMOSPHERE OCEAN INTERACTION NORTH-ATLANTIC SOUTHERN-OSCILLATION WARM POOL CLIMATE MODELS NINO PACIFIC ENSO ANOMALIES NAO teleconnection North Tropical Atlantic |
spellingShingle |
SEA-SURFACE TEMPERATURE ATMOSPHERE OCEAN INTERACTION NORTH-ATLANTIC SOUTHERN-OSCILLATION WARM POOL CLIMATE MODELS NINO PACIFIC ENSO ANOMALIES NAO teleconnection North Tropical Atlantic Ham, YG Sung, MK An, SI Schubert, S Kug, JS Role of Tropical Atlantic SST Variability as a Modulator of El Nino Teleconnections |
topic_facet |
SEA-SURFACE TEMPERATURE ATMOSPHERE OCEAN INTERACTION NORTH-ATLANTIC SOUTHERN-OSCILLATION WARM POOL CLIMATE MODELS NINO PACIFIC ENSO ANOMALIES NAO teleconnection North Tropical Atlantic |
description |
The present study suggests that the off-equatorial North Atlantic (NATL) SST warming plays a significant role in modulating El Nio teleconnection and its impact on the North Atlantic and European regions. The El Nio events accompanied by NATL SST warming exhibit south-north dipole pattern over the Western Europe to Atlantic, while the ENSO teleconnection pattern without NATL warming exhibits a Rossby wave-like pattern confined over the North Pacific and western Atlantic. Especially, the El Nio events with NATL warming show positive (negative) geopotential-height anomalies over the North Atlantic (Western Europe) which resemble the negative phase of the NAO. Consistently, it is shown using a simple statistical model that NATL SSTA in addition to the tropical Pacific SSTA leads to better prediction on regional climate variation over the North Atlantic and European regions. This role of NATL SST on ENSO teleconnection is also validated and discussed in a long term simulation of coupled global circulation model (CGCM). X 1 1 7 5 scie scopus kci |
author2 |
환경공학부 10112320 Kug, JS |
format |
Article in Journal/Newspaper |
author |
Ham, YG Sung, MK An, SI Schubert, S Kug, JS |
author_facet |
Ham, YG Sung, MK An, SI Schubert, S Kug, JS |
author_sort |
Ham, YG |
title |
Role of Tropical Atlantic SST Variability as a Modulator of El Nino Teleconnections |
title_short |
Role of Tropical Atlantic SST Variability as a Modulator of El Nino Teleconnections |
title_full |
Role of Tropical Atlantic SST Variability as a Modulator of El Nino Teleconnections |
title_fullStr |
Role of Tropical Atlantic SST Variability as a Modulator of El Nino Teleconnections |
title_full_unstemmed |
Role of Tropical Atlantic SST Variability as a Modulator of El Nino Teleconnections |
title_sort |
role of tropical atlantic sst variability as a modulator of el nino teleconnections |
publisher |
Korean Meteorological Society |
publishDate |
2014 |
url |
https://oasis.postech.ac.kr/handle/2014.oak/27307 https://doi.org/10.1007/S13143-014-0013-X |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
ASIA-PACIFIC JOURNAL OF ATMOSPHERIC SCIENCES 50 1 15 SCI Meteorology & Atmospheric Sciences 1976-7633 2014-OAK-0000029980 https://oasis.postech.ac.kr/handle/2014.oak/27307 doi:10.1007/S13143-014-0013-X 16287 ASIA-PACIFIC JOURNAL OF ATMOSPHERIC SCIENCES, v.50, no.1, pp.1 - 15 000336812300001 2-s2.0-84904244802 |
op_doi |
https://doi.org/10.1007/S13143-014-0013-X |
container_title |
Asia-Pacific Journal of Atmospheric Sciences |
container_volume |
50 |
container_issue |
3 |
container_start_page |
247 |
op_container_end_page |
261 |
_version_ |
1766117950341775360 |