Tropical eastern Pacific cooling trend reinforced by human activity
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Chung, Eui-Seok | - |
dc.contributor.author | Kim, Seong-Joong | - |
dc.contributor.author | Lee, Sang-Ki | - |
dc.contributor.author | Kyung-Ja Ha | - |
dc.contributor.author | Yeh, Sang-Wook | - |
dc.contributor.author | Kim, Yong Sun | - |
dc.contributor.author | Jun, Sang-Yoon | - |
dc.contributor.author | Kim, Joo-Hong | - |
dc.contributor.author | Kim, Dongmin | - |
dc.date.accessioned | 2024-08-09T02:30:01Z | - |
dc.date.available | 2024-08-09T02:30:01Z | - |
dc.date.created | 2024-08-05 | - |
dc.date.issued | 2024-07 | - |
dc.identifier.issn | 2397-3722 | - |
dc.identifier.uri | https://pr.ibs.re.kr/handle/8788114/15491 | - |
dc.description.abstract | It remains unresolved whether the La Ni & ntilde;a-like sea surface temperature (SST) trend pattern during the satellite era, featuring a distinct warming in the northwest/southwest Pacific but cooling in the tropical eastern Pacific, is driven by either external forcing or internal variability. Here, by conducting a comprehensive analysis of observations and a series of climate model simulations for the historical period, we show that a combination of internal variability and human activity may have shaped the observed La Ni & ntilde;a-like SST trend pattern. As in observations, SSTs in each model ensemble member show a distinct multi-decadal swing between El Ni & ntilde;o-like and La Ni & ntilde;a-like trend patterns due to internal variability. The ensemble-mean trends for some models are, however, found to exhibit an enhanced zonal SST gradient along the equatorial Pacific over periods such as 1979-2010, suggesting a role of external forcing. In line with this hypothesis, single-forcing large ensemble model simulations show that human-induced stratospheric ozone depletion and/or aerosol changes have acted to enhance the zonal SST gradient via strengthening of Pacific trade winds, although the effect is model dependent. Our finding suggests that the La Ni & ntilde;a-like SST trend is unlikely to persist under sustained global warming because both the ozone and aerosol impacts will eventually weaken. | - |
dc.language | 영어 | - |
dc.publisher | Nature Publishing Group | - |
dc.title | Tropical eastern Pacific cooling trend reinforced by human activity | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.identifier.wosid | 001275564400002 | - |
dc.identifier.scopusid | 2-s2.0-85199339092 | - |
dc.identifier.rimsid | 83762 | - |
dc.contributor.affiliatedAuthor | Kyung-Ja Ha | - |
dc.identifier.doi | 10.1038/s41612-024-00713-2 | - |
dc.identifier.bibliographicCitation | npj Climate and Atmospheric Science, v.7, no.1 | - |
dc.relation.isPartOf | npj Climate and Atmospheric Science | - |
dc.citation.title | npj Climate and Atmospheric Science | - |
dc.citation.volume | 7 | - |
dc.citation.number | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | Y | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalWebOfScienceCategory | Meteorology & Atmospheric Sciences | - |
dc.subject.keywordPlus | SEA-SURFACE TEMPERATURE | - |
dc.subject.keywordPlus | ICE TRENDS | - |
dc.subject.keywordPlus | OCEAN | - |
dc.subject.keywordPlus | VARIABILITY | - |
dc.subject.keywordPlus | SST | - |
dc.subject.keywordPlus | AEROSOLS | - |