DOI: 10.1175/JCLI-D-12-00149.1
Scopus记录号: 2-s2.0-84874792999
论文题名: Hadley circulation response to orbital precession. part ii: Subtropical continent
作者: Merlis T.M. ; Schneider T. ; Bordoni S. ; Eisenman I.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2013
卷: 26, 期: 3 起始页码: 754
结束页码: 771
语种: 英语
Scopus关键词: Atmosphere-land interactions
; Atmospheric energy
; Atmospheric general circulation models
; Circulation boundaries
; Extratropical
; Hadley circulation
; Intertropical convergence zone
; Land-surface process
; Momentum flux
; Orbital precession
; Paleoclimates
; Poleward shift
; Radiative perturbation
; Spatial variations
; Subtropical latitudes
; Top of atmospheres
; Climatology
; Mathematical models
; Climate control
; atmospheric general circulation model
; energy flux
; Hadley cell
; heat capacity
; intertropical convergence zone
; monsoon
; paleoclimate
; subtropical convergence
英文摘要: The response of the monsoonal and annual-mean Hadley circulation to orbital precession is examined in an idealized atmospheric general circulation model with a simplified representation of land surface processes in subtropical latitudes. When perihelion occurs in the summer of a hemisphere with a subtropical continent, changes in the top-of-atmosphere energy balance, together with a poleward shift of the monsoonal circulation boundary, lead to a strengthening of the monsoonal circulation. Spatial variations in surface heat capacity determine whether radiative perturbations are balanced by energy storage or by atmospheric energy fluxes. Although orbital precession does not affect annual-mean insolation, the annual-mean Hadley circulation does respond to orbital precession because its sensitivity to radiative changes varies over the course of the year: the monsoonal circulation in summer is near the angular momentum-conserving limit and responds directly to radiative changes; whereas in winter, the circulation is affected by the momentum fluxes of extratropical eddies and is less sensitive to radiative changes. © 2013 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52040
Appears in Collections: 气候变化事实与影响
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作者单位: Princeton University, Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States; California Institute of Technology, Pasadena, CA, United States; Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, United States
Recommended Citation:
Merlis T.M.,Schneider T.,Bordoni S.,et al. Hadley circulation response to orbital precession. part ii: Subtropical continent[J]. Journal of Climate,2013-01-01,26(3)