DOI: 10.1175/JCLI-D-13-00526.1
Scopus记录号: 2-s2.0-84904488724
论文题名: The response of large-scale circulation to obliquity-induced changes in meridional heating gradients
作者: Mantsis D.F. ; Lintner B.R. ; Broccoli A.J. ; Erb M.P. ; Clement A.C. ; Park H.-S.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2014
卷: 27, 期: 14 起始页码: 5504
结束页码: 5516
语种: 英语
Scopus关键词: Climate change
; Heat transfer
; Geophysical fluid dynamics laboratories
; Hadley circulation
; Insolation gradients
; Isentropic surfaces
; Large-scale circulation
; Meridional overturning circulations
; Sensible and latent heat fluxes
; Streamfunctions
; Incident solar radiation
; climate change
; climate modeling
; climate variation
; eddy
; entropy
; Hadley cell
; heat transfer
; latent heat flux
; meridional circulation
; sensible heat flux
; summer
; winter
英文摘要: The inter- and intrahemispheric climate responses to a change in obliquity are investigated using the Geophysical Fluid Dynamics Laboratory Climate Model, version 2.1. (GFDL CM2.1). Reduced obliquity causes a weakening of the seasonal insolation contrast between the summer and winter hemispheres and a strengthening of the meridional insolation gradient within the summer hemisphere. The interhemispheric insolation change is associated with weakening of the cross-equatorial Hadley circulation and reduced heat transport from the summer hemisphere to the winter hemisphere, in both the ocean and atmosphere. In contrast, the intrahemispheric insolation change is associated with increased midlatitude summer eddy activity as seen by the increased atmospheric heat transport at those latitudes. Analysis of the zonal mean atmospheric meridional overturning circulation on isentropic surfaces confirms the increase of themidlatitude eddy circulation, which is driven by changes of sensible and latent heat fluxes, as well as changes in the stratification or distribution of entropy. It is suggested that the strengthening of this circulation is associated with an equatorward shift of the ascending branch of the winter Hadley cell. © 2014 American Meteorological Society. 资助项目: NSF, National Science Foundation
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51316
Appears in Collections: 气候变化事实与影响
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作者单位: Rutgers, The State University of New Jersey, New Brunswick, NJ, United States; University of Miami, Miami, FL, United States; School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea
Recommended Citation:
Mantsis D.F.,Lintner B.R.,Broccoli A.J.,et al. The response of large-scale circulation to obliquity-induced changes in meridional heating gradients[J]. Journal of Climate,2014-01-01,27(14)