DOI: 10.1175/JCLI-D-15-0789.1
Scopus记录号: 2-s2.0-85018956856
论文题名: Green mountains and white plains: The effect of northern hemisphere ice sheets on the global energy budget
作者: Roberts W.H.G. ; Valdes P.J.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2017
卷: 30, 期: 10 起始页码: 3907
结束页码: 3925
语种: 英语
Scopus关键词: Budget control
; Glacial geology
; Glaciers
; Landforms
; Solar radiation
; Topography
; Energy budget/balance
; Energy transport
; Glaciation
; Global energy budget
; Linear relationships
; Northern Hemispheres
; Southern Hemisphere
; Top of the atmospheres
; Ice
英文摘要: The changes in the global energy budget in response to imposing an ice sheet's topography, albedo, or topography and albedo combined are examined. The albedo of the ice sheet (here called a "White Plain") causes an outgoing top of the atmosphere radiation anomaly over the ice sheet that is balanced by an incoming anomaly in the Southern Hemisphere. This causes a northward transport of heat across the equator that is carried equally by the ocean and atmosphere. The topography of the ice sheet ("Green Mountain") causes an incoming radiation anomaly over the ice sheet that is balanced predominantly by an outgoing anomaly to the south of the ice sheet, with a smaller outgoing flux in the Southern Hemisphere. The heat is transported across the equator by the atmosphere alone. The combined topography and albedo of the ice sheet ("White Mountain") cause an outgoing radiation anomaly over the ice sheet that is balanced equally by an incoming flux in the Southern Hemisphere and to the south of the ice sheet. Heat is transported across the equator by the ocean alone. With varying ice sheet geometry generally linear relationships between the various energy fluxes and the varying height and area of the ice sheet are found. In both the White Plain and White Mountain cases the ocean is always a significant carrier of heat across the equator, and in the White Mountain case it is preeminent. © 2017 American Meteorological Society. 资助项目: NSFC, National Natural Science Foundation of China
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/49671
Appears in Collections: 气候变化事实与影响
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作者单位: School of Geographical Sciences, University of Bristol, Bristol, United Kingdom
Recommended Citation:
Roberts W.H.G.,Valdes P.J.. Green mountains and white plains: The effect of northern hemisphere ice sheets on the global energy budget[J]. Journal of Climate,2017-01-01,30(10)