气候变化领域集成服务门户(CCPortal): A basic effect of cloud radiative effects on tropical sea surface temperature variability

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DOI	10.1175/JCLI-D-19-0298.1
	A basic effect of cloud radiative effects on tropical sea surface temperature variability
	Ying L.I.; Thompson D.W.J.; Olonscheck D.
发表日期	2020
ISSN	0894-8755
起始页码	4333
结束页码	4346
卷号	33 期号:10
英文摘要	Cloud radiative effects (CREs) are known to play a central role in governing the long-term mean distribution of sea surface temperatures (SSTs). Very recent work suggests that CREs may also play a role in governing the variability of SSTs in the context of El Niño-Southern Oscillation. Here, the authors exploit numerical simulations in the Max Planck Institute Earth System Model with two different representations of CREs to demonstrate that coupling between CREs and the atmospheric circulation has a much more general and widespread effect on tropical climate than that indicated in previous work. The results reveal that coupling between CREs and the atmospheric circulation leads to robust increases in SST variability on time scales longer than a month throughout the tropical oceans. Remarkably, cloud-circulation coupling leads to more than a doubling of the amplitude of decadal-scale variability in tropical-mean SSTs. It is argued that the increases in tropical SST variance derive primarily from the coupling between SSTs and shortwave CREs: Coupling increases the memory in shortwave CREs on hourly and daily time scales and thus reddens the spectrum of shortwave CREs and increases their variance on time scales spanning weeks to decades. Coupling between SSTs and CREs does not noticeably affect the variance of SSTs in the extratropics, where the effects from variability in CREs on the surface energy budget are much smaller than the effects from the turbulent heat fluxes. The results indicate a basic but critical role of CREs in climate variability throughout the tropics. © 2020 American Meteorological Society. For information regarding reuse of this content and general copyright information, consult the AMS Copyright Policy (www.ametsoc.org/PUBSReuseLicenses).
英文关键词	Atmospheric pressure; Atmospheric temperature; Budget control; Climate models; Climatology; Submarine geophysics; Surface properties; Surface waters; Time measurement; Tropics; Atmospheric circulation; Cloud radiative effects; Max Planck Institute; Sea surface temperature variability; Sea surface temperatures; Southern oscillation; Surface energy budget; Turbulent heat fluxes; Oceanography; atmosphere-ocean coupling; cloud radiative forcing; El Nino-Southern Oscillation; numerical model; sea surface temperature; temporal variation; tropical region
语种	英语
来源期刊	Journal of Climate
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/171309
作者单位	Department of Atmospheric Science, Colorado State University, Fort Collins, CO, United States; Max Planck Institute for Meteorology, Hamburg, Germany
推荐引用方式 GB/T 7714	Ying L.I.,Thompson D.W.J.,Olonscheck D.. A basic effect of cloud radiative effects on tropical sea surface temperature variability[J],2020,33(10).
APA	Ying L.I.,Thompson D.W.J.,&Olonscheck D..(2020).A basic effect of cloud radiative effects on tropical sea surface temperature variability.Journal of Climate,33(10).
MLA	Ying L.I.,et al."A basic effect of cloud radiative effects on tropical sea surface temperature variability".Journal of Climate 33.10(2020).