DOI: 10.1175/JCLI-D-14-00086.1
Scopus记录号: 2-s2.0-84905921024
论文题名: Robust seasonality of arctic warming processes in two different versions of the MIROC GCM
作者: Yoshimori M. ; Abe-ouchi A. ; Watanabe M. ; Oka A. ; Ogura T.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2014
卷: 27, 期: 16 起始页码: 6358
结束页码: 6375
语种: 英语
Scopus关键词: Carbon dioxide
; Climate change
; Heat storage
; Albedo feedbacks
; Energy balance analysis
; Low-level clouds
; Ocean heat uptake
; Relative contribution
; Surface warming
; Top of the atmospheres
; Transient experiments
; Feedback
; arctic environment
; atmospheric chemistry
; atmospheric general circulation model
; carbon dioxide
; climate change
; climate feedback
; climate modeling
; climate variation
; cloud radiative forcing
; concentration (composition)
; energy balance
; oceanic general circulation model
; seasonality
; troposphere
; warming
; Arctic
英文摘要: It is one of the most robust projected responses of climate models to the increase of atmospheric CO2 concentration that the Arctic experiences a rapid warming with a magnitude larger than the rest of the world. Whilemany processes are proposed as important, the relative contribution of individual processes to the Arctic warming is not often investigated systematically. Feedbacks are quantified in two different versions of an atmosphere-ocean GCM under idealized transient experiments based on an energy balance analysis that extends from the surface to the top of the atmosphere. The emphasis is placed on the largest warming from late autumn to early winter (October-December) and the difference fromother seasons. It is confirmed that dominating processes vary with season. In autumn, the largest contribution to the Arctic surface warming is made by a reduction of ocean heat storage and cloud radiative feedback. In the annual mean, on the other hand, it is the albedo feedback that contributes the most, with increasing ocean heat uptake to the deeper layers working as a negative feedback. While the qualitative results are robust between the two models, they differ quantitatively, indicating the need for further constraint on each process. Ocean heat uptake, lower tropospheric stability, and low-level cloud response probably require special attention. © 2014 American Meteorological Society. 资助项目: JSPS, Japan Society for the Promotion of Science
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51047
Appears in Collections: 气候变化事实与影响
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作者单位: Atmosphere and Ocean Research Institute, University of Tokyo, Kashiwa, Japan; Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan; National Institute for Environmental Studies, Tsukuba, Japan
Recommended Citation:
Yoshimori M.,Abe-ouchi A.,Watanabe M.,et al. Robust seasonality of arctic warming processes in two different versions of the MIROC GCM[J]. Journal of Climate,2014-01-01,27(16)