DOI: 10.1007/s00382-014-2189-2
Scopus记录号: 2-s2.0-84937917652
论文题名: Energy-balance mechanisms underlying consistent large-scale temperature responses in warm and cold climates
作者: Izumi K. ; Bartlein P.J. ; Harrison S.P.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2015
卷: 44, 期: 2017-11-12 起始页码: 3111
结束页码: 3127
语种: 英语
英文关键词: Climate model simulations
; Land–ocean contrast
; Paleo/future simulations
; Polar amplification
; Seasonality change
; Surface energy balance
英文摘要: Climate simulations show consistent large-scale temperature responses including amplified land–ocean contrast, high-latitude/low-latitude contrast, and changes in seasonality in response to year-round forcing, in both warm and cold climates, and these responses are proportional and nearly linear across multiple climate states. We examine the possibility that a small set of common mechanisms controls these large-scale responses using a simple energy-balance model to decompose the temperature changes shown in multiple lgm and abrupt4 × CO2 simulations from the CMIP5 archive. Changes in the individual components of the energy balance are broadly consistent across the models. Although several components are involved in the overall temperature responses, surface downward clear-sky longwave radiation is the most important component driving land–ocean contrast and high-latitude amplification in both warm and cold climates. Surface albedo also plays a significant role in promoting high-latitude amplification in both climates and in intensifying the land–ocean contrast in the warm climate case. The change in seasonality is a consequence of the changes in land–ocean and high-latitude/low-latitude contrasts rather than an independent temperature response. This is borne out by the fact that no single component stands out as being the major cause of the change in seasonality, and the relative importance of individual components is different in cold and warm climates. © 2014, The Author(s). 资助项目: NSF, National Science Foundation
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54097
Appears in Collections: 过去全球变化的重建
There are no files associated with this item.
作者单位: Department of Geography, University of Oregon, Eugene, OR, United States; School of Biological Sciences, Macquarie University, North Ryde, NSW, Australia; Geography and Environmental Sciences, School of Human and Environmental Sciences, Reading University, Whiteknights, Reading, United Kingdom
Recommended Citation:
Izumi K.,Bartlein P.J.,Harrison S.P.. Energy-balance mechanisms underlying consistent large-scale temperature responses in warm and cold climates[J]. Climate Dynamics,2015-01-01,44(2017-11-12)