globalchange  > 影响、适应和脆弱性
DOI: 10.1002/2013MS000288
Scopus记录号: 2-s2.0-84937042731
论文题名:
Influence of low-cloud radiative effects on tropical circulation and precipitation
作者: Fermepin S; , Bony S
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2015
卷: 6, 期:3
起始页码: 513
结束页码: 526
语种: 英语
英文关键词: Atmospheric thermodynamics ; Boundary layer flow ; Boundary layers ; Budget control ; Climate models ; Earth atmosphere ; Precipitation (chemical) ; Tropics ; Atmospheric circulation ; Atmospheric dynamics ; Atmospheric general circulation models ; Cloud radiative effects ; Overturning circulation ; Planetary boundary layers ; Radiative cooling ; Water and energies ; Precipitation (meteorology) ; atmospheric dynamics ; atmospheric general circulation model ; boundary layer ; cloud classification ; cloud radiative forcing ; cooling ; coupling ; energy budget ; forecasting method ; overturn ; precipitation (climatology) ; sea surface ; tropical region ; turbulent flow ; water budget
英文摘要: Low-level clouds, which constitute the most prevalent cloud type over tropical oceans, exert a radiative cooling within the planetary boundary layer. By using an atmospheric general circulation model, we investigate the role that this cloud radiative cooling plays in the present-day climate. Low-cloud radiative effects are found to increase the tropics-wide precipitation, to strengthen the winds at the surface of the tropical oceans, and to amplify the atmospheric overturning circulation. An analysis of the water and energy budgets of the atmosphere reveals that most of these effects arises from the strong coupling of cloud-radiative cooling with turbulent fluxes at the ocean surface. The impact of cloud-radiative effects on atmospheric dynamics and precipitation is shown to occur on very short time scales (a few days). Therefore, short-term atmospheric forecasts constitute a valuable framework for evaluating the interactions between cloud processes and atmospheric dynamics, and for assessing their dependence on model physics. © 2014. The Authors.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/76025
Appears in Collections:影响、适应和脆弱性
气候变化与战略

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作者单位: Laboratoire de Météorologie Dynamique, IPSL, CNRS, Université Pierre et Marie Curie, Paris, France

Recommended Citation:
Fermepin S,, Bony S. Influence of low-cloud radiative effects on tropical circulation and precipitation[J]. Journal of Advances in Modeling Earth Systems,2015-01-01,6(3)
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