Strengthened impact of boreal winter North Pacific Oscillation on ENSO development in warming climate
Strengthened impact of boreal winter North Pacific Oscillation on ENSO development in warming climate
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Full item details
- dc.contributor.author
- Chen, Shangfeng
- Chen, Wen
- Xie, Shang
- Yu, Bin
- Wu, Renguang
- Wang, Zhibiao
- Lan, Xiaoqing
- Graf, Hans-F
- dc.date.accepted
- 2024-03-04
- dc.date.accessioned
- 2024-04-09T18:51:52Z
- dc.date.available
- 2024-04-09T18:51:52Z
- dc.date.issued
- 2024-03-12
- dc.date.submitted
- 2023-11-30
- dc.description.abstract - en
- The North Pacific Oscillation (NPO), an important mode of atmospheric variability, is a crucial trigger for the development of El Niño-Southern Oscillation (ENSO) via the seasonal footprinting mechanism. How the NPO effect on ENSO changes in response to greenhouse warming remains unclear, however. Here, using climate model simulations under high-emission scenarios, we show that greenhouse warming leads to an enhanced influence of NPO on ENSO as is manifested by enhanced responses of winter sea surface temperature (SST), precipitation and wind anomalies in the equatorial Pacific to the preceding winter NPO. The strengthened NPO impact is also reflected in an increased frequency of NPO events that are followed by ENSO events. Warmer background SST enhances the wind-evaporation-SST feedback over the subtropical North Pacific due to a nonlinear SST-evaporation relationship. This strengthens the NPO-generated surface zonal wind anomalies over the equatorial western-central Pacific, which trigger ENSO. Increased impact of winter NPO on ENSO could enable prediction of interannual variability at longer leads.
- dc.identifier.doi
- https://doi.org/10.1038/s41612-024-00615-3
- dc.identifier.issn
- 2397-3722
- dc.identifier.uri
- https://open-science.canada.ca/handle/123456789/2254
- dc.language.iso
- en
- dc.publisher
- Springer Nature
- dc.rights - en
- Creative Commons Attribution 4.0 International (CC BY 4.0)
- dc.rights - fr
- Creative Commons Attribution 4.0 International (CC BY 4.0)
- dc.rights.openaccesslevel - en
- Gold
- dc.rights.openaccesslevel - fr
- Or
- dc.rights.uri - en
- https://creativecommons.org/licenses/by/4.0/
- dc.rights.uri - fr
- https://creativecommons.org/licenses/by/4.0/deed.fr
- dc.subject - en
- Nature and environment
- Science and technology
- Climate
- dc.subject - fr
- Nature et environnement
- Sciences et technologie
- Climat
- dc.subject.en - en
- Nature and environment
- Science and technology
- Climate
- dc.subject.fr - fr
- Nature et environnement
- Sciences et technologie
- Climat
- dc.title - en
- Strengthened impact of boreal winter North Pacific Oscillation on ENSO development in warming climate
- dc.type - en
- Article
- dc.type - fr
- Article
- local.acceptedmanuscript.articlenum
- 69
- local.article.journaltitle
- npj Climate and Atmospheric Science
- local.article.journalvolume
- 7
- local.pagination
- 11 pages
- local.peerreview - en
- Yes
- local.peerreview - fr
- Oui
- local.requestdoi
- No
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