DOI: 10.1175/JCLI-D-14-00825.1
Scopus记录号: 2-s2.0-84945563501
论文题名: The influence of atmospheric cloud radiative effects on the large-scale atmospheric circulation
作者: Li Y. ; Thompson D.W.J. ; Bony S.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2015
卷: 28, 期: 18 起始页码: 7263
结束页码: 7278
语种: 英语
Scopus关键词: Climatology
; Clouds
; Dynamics
; Earth atmosphere
; Kinetic energy
; Kinetics
; Meteorology
; Tropics
; Troposphere
; Atmospheric circulation
; Atmospheric general circulation models
; Cloud radiative effects
; Extratropical circulation
; Extratropical latitudes
; General circulation model
; Meridional temperature gradient
; Tropical precipitation
; Climate models
; atmospheric dynamics
; atmospheric general circulation model
; climatology
; cloud radiative forcing
; extratropical environment
; planetary wave
; precipitation (climatology)
; stratosphere-troposphere interaction
英文摘要: The influence of clouds on the large-scale atmospheric circulation is examined in numerical simulations from an atmospheric general circulation model run with and without atmospheric cloud radiative effects (ACRE). In the extratropics of both hemispheres, the primary impacts of ACRE on the circulation include 1) increases in the meridional temperature gradient and decreases in static stability in the midlatitude upper troposphere, 2) strengthening of the midlatitude jet, 3) increases in extratropical eddy kinetic energy by up to 30%, and 4) increases in precipitation at middle latitudes but decreases at subtropical latitudes. In the tropics, the primary impacts of ACRE include 1) eastward wind anomalies in the tropical upper troposphere-lower stratosphere (UTLS) and 2) reductions in tropical precipitation. The impacts of ACRE on the atmospheric circulation are interpreted in the context of a series of dynamical and physical processes. The changes in the extratropical circulation and precipitation are consistent with the influence of ACRE on the baroclinicity and eddy fluxes of momentum in the extratropical upper troposphere, the changes in the zonal wind in the UTLS with the influence of ACRE on the amplitude of the equatorial planetary waves, and the changes in the tropical precipitation with the energetic constraints on the tropical troposphere. The results make clear that ACRE have a pronounced influence on the atmospheric circulation not only at tropical latitudes, but at extratropical latitudes as well. They highlight the critical importance of correctly simulating ACRE in global climate models. © 2015 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50374
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Atmospheric Science, Colorado State University, Fort Collins, CO, United States; Laboratoire de Météorologie Dynamique, IPSL, CNRS, Université Pierre et Marie Curie, Paris, France
Recommended Citation:
Li Y.,Thompson D.W.J.,Bony S.. The influence of atmospheric cloud radiative effects on the large-scale atmospheric circulation[J]. Journal of Climate,2015-01-01,28(18)