气候变化领域集成服务门户(CCPortal): Future high-resolution El Niño/Southern Oscillation dynamics

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DOI	10.1038/s41558-021-01132-4
	Future high-resolution El Niño/Southern Oscillation dynamics
	Wengel C.; Lee S.-S.; Stuecker M.F.; Timmermann A.; Chu J.-E.; Schloesser F.
发表日期	2021
ISSN	1758-678X
起始页码	758
结束页码	765
卷号	11 期号:9
英文摘要	The current generation of climate models does not properly resolve oceanic mesoscale processes in tropical oceans, such as tropical instability waves. The associated deficit in explicit vertical and lateral heat exchange can further contribute to large-scale equatorial temperature biases, which in turn impact the representation of the El Niño/Southern Oscillation (ENSO) and its sensitivity to greenhouse warming. Here, using a mesoscale-resolving global climate model with an improved representation of tropical climate, we show that a quadrupling of atmospheric CO2 causes a robust weakening of future simulated ENSO sea surface temperature variability. This sensitivity is caused mainly by stronger latent heat flux damping and weaker advective feedbacks. Stratification-induced weakening of tropical instability wave activity and the corresponding growth of ENSO instability partly offset the effect of other negative dynamical feedbacks. Our results demonstrate that previous lower-resolution greenhouse warming projections did not adequately simulate important ENSO-relevant ocean mesoscale processes. © 2021, The Author(s), under exclusive licence to Springer Nature Limited.
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/237245
作者单位	Center for Climate Physics, Institute for Basic Science, Busan, South Korea; Pusan National University, Busan, South Korea; Max Planck Institute for Meteorology, Hamburg, Germany; Department of Oceanography and International Pacific Research Center, School of Ocean and Earth Science and Technology, University of Hawaiʻi at Mānoa, Honolulu, HI, United States
推荐引用方式 GB/T 7714	Wengel C.,Lee S.-S.,Stuecker M.F.,et al. Future high-resolution El Niño/Southern Oscillation dynamics[J],2021,11(9).
APA	Wengel C.,Lee S.-S.,Stuecker M.F.,Timmermann A.,Chu J.-E.,&Schloesser F..(2021).Future high-resolution El Niño/Southern Oscillation dynamics.Nature Climate Change,11(9).
MLA	Wengel C.,et al."Future high-resolution El Niño/Southern Oscillation dynamics".Nature Climate Change 11.9(2021).