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DOI	10.1038/s41467-020-20452-1
	Diabatic heating governs the seasonality of the Atlantic Niño
	Nnamchi H.C.; Latif M.; Keenlyside N.S.; Kjellsson J.; Richter I.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	The Atlantic Niño is the leading mode of interannual sea-surface temperature (SST) variability in the equatorial Atlantic and assumed to be largely governed by coupled ocean-atmosphere dynamics described by the Bjerknes-feedback loop. However, the role of the atmospheric diabatic heating, which can be either an indicator of the atmosphere’s response to, or its influence on the SST, is poorly understood. Here, using satellite-era observations from 1982–2015, we show that diabatic heating variability associated with the seasonal migration of the Inter-Tropical Convergence Zone controls the seasonality of the Atlantic Niño. The variability in precipitation, a measure of vertically integrated diabatic heating, leads that in SST, whereas the atmospheric response to SST variability is relatively weak. Our findings imply that the oceanic impact on the atmosphere is smaller than previously thought, questioning the relevance of the classical Bjerknes-feedback loop for the Atlantic Niño and limiting climate predictability over the equatorial Atlantic sector. © 2021, The Author(s).
语种	英语
scopus关键词	article; atmosphere; climate; feedback system; heating; precipitation; sea surface temperature; seasonal variation; Indicator indicator
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/250785
作者单位	GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany; Department of Geography, University of Nigeria, Nsukka, Nigeria; Geophysical Institute, University of Bergen, and Bjerknes Centre for Climate Research, Bergen, Norway; Nansen Environmental and Remote Sensing Center, Bergen, Norway; Application Laboratory, Research Institute for Value-Added-Information Generation, Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan
推荐引用方式 GB/T 7714	Nnamchi H.C.,Latif M.,Keenlyside N.S.,et al. Diabatic heating governs the seasonality of the Atlantic Niño[J],2021,12(1).
APA	Nnamchi H.C.,Latif M.,Keenlyside N.S.,Kjellsson J.,&Richter I..(2021).Diabatic heating governs the seasonality of the Atlantic Niño.Nature Communications,12(1).
MLA	Nnamchi H.C.,et al."Diabatic heating governs the seasonality of the Atlantic Niño".Nature Communications 12.1(2021).