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Emergence of climate change in the tropical Pacific

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Title
Emergence of climate change in the tropical Pacific
Author(s)
Ying, Jun; Collins, Matthew; Cai, Wenju; Axel Timmermann; Huang, Ping; Chen, Dake; Karl Stein
Publication Date
2022-04
Journal
Nature Climate Change, v.12, no.4, pp.356 - 364
Publisher
Nature Research
Abstract
© 2022, The Author(s), under exclusive licence to Springer Nature Limited.Future changes in the mean climate of the tropical Pacific and characteristics of the El Niño/Southern Oscillation (ENSO) are established as being likely. Determining the time of emergence of climate change signals from the natural variability is critical for mitigation strategies and adaptation planning. Here, using a multimodel ensemble, we find that the annual-mean sea surface temperature (SST) signal has already emerged across much of the tropical Pacific, appearing last in the east. The signal of a wetter annual-mean rainfall in the east is expected to emerge by mid-century, with some sensitivity to emission scenario. However, the ENSO-related rainfall variability signal is projected to emerge by about 2040 regardless of emission scenario, about 30 years earlier than ENSO-related SST variability signal at about 2070. Our results are instructive for the detection of climate change signals and reinforce the rapidly emerging risks of ENSO-induced climate extremes regardless of mitigation actions.
URI
https://pr.ibs.re.kr/handle/8788114/11560
DOI
10.1038/s41558-022-01301-z
ISSN
1758-678X
Appears in Collections:
Center for Climate Physics(기후물리 연구단) > 1. Journal Papers (저널논문)
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