globalchange  > 气候变化与战略
DOI: 10.1038/s41561-021-00730-3
论文题名:
Intensification of El Niño-induced atmospheric anomalies under greenhouse warming
作者: Hu K.; Huang G.; Huang P.; Kosaka Y.; Xie S.-P.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2021
卷: 14, 期:6
起始页码: 377
结束页码: 382
语种: 英语
英文关键词: air temperature ; air-sea interaction ; climate modeling ; El Nino ; El Nino-Southern Oscillation ; geopotential ; global climate ; sea surface temperature ; vapor pressure ; Pacific Ocean ; Pacific Ocean (Tropical)
英文摘要: The El Niño/Southern Oscillation (ENSO) has a profound influence on global climate and ecosystems. Determining how the ENSO responds to greenhouse warming is a crucial issue in climate science. Despite recent progress in understanding, the responses of important ENSO characteristics, such as air temperature and atmospheric circulation, are still unknown. Here, we use a suite of global climate model projections to show that greenhouse warming drives a robust intensification of ENSO-driven variability in boreal winter tropical upper tropospheric temperature and geopotential height, tropical humidity, subtropical jets and tropical Pacific rainfall. These robust changes are primarily due to the Clausius–Clapeyron relationship, whereby saturation vapour pressure increases nearly exponentially with increasing temperature. Therefore, the vapour response to temperature variability is larger under a warmer climate. As a result, under global warming, even if the ENSO’s sea surface temperature remains unchanged, the response of tropical lower tropospheric humidity to the ENSO amplifies, which in turn results in major reorganization of atmospheric temperature, circulation and rainfall. These findings provide a novel theoretical constraint for ENSO changes and reduce uncertainty in the ENSO response to greenhouse warming. © 2021, The Author(s), under exclusive licence to Springer Nature Limited.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169767
Appears in Collections:气候变化与战略

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作者单位: State key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Laboratory for Regional Oceanography and Numerical Modeling, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; Center for Monsoon System Research, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China; Research Center for Advanced Science and Technology, University of Tokyo, Tokyo, Japan; Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, United States

Recommended Citation:
Hu K.,Huang G.,Huang P.,et al. Intensification of El Niño-induced atmospheric anomalies under greenhouse warming[J]. Nature Geoscience,2021-01-01,14(6)
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