Time-Dependent Freshwater Input From Ice Shelves: Impacts on Antarctic Sea Ice and the Southern Ocean in an Earth System Model

doi:10.1002/2017GL075017

GSTDTAP > 气候变化

DOI	10.1002/2017GL075017
	Time-Dependent Freshwater Input From Ice Shelves: Impacts on Antarctic Sea Ice and the Southern Ocean in an Earth System Model
	Pauling, Andrew G.1,2; Smith, Inga J.1; Langhorne, Patricia J.1; Bitz, Cecilia M.2
	2017-10-28
发表期刊	GEOPHYSICAL RESEARCH LETTERS
ISSN	0094-8276
EISSN	1944-8007
出版年	2017
卷号	44 期号:20
文章类型	Article
语种	英语
国家	New Zealand; USA
英文摘要	Earth System Models do not reproduce the observed increase in Antarctic sea ice extent which may be due to the unrealistic representation of ice shelves. Here we investigate the response of sea ice to increasing freshwater input from ice shelves using the Community Earth System Model with the Community Atmosphere Model version 5 [CESM1(CAM5)]. We have conducted model experiments adding fresh water as if from ice shelf melt with a linear increase in the rate of input over the period 1980-2013. Including the effect of heat loss from the ocean to melt ice shelves resulted in significantly more positive trends in sea ice area. We found that an increase in the rate of change of freshwater input of similar to 45 Gt yr(-2) was sufficient to offset the negative trend in sea ice area in CESM1(CAM5), although the freshwater input by the end of the experiment was larger than observed at that time.
领域	气候变化
收录类别	SCI-E
WOS记录号	WOS:000416761600044
WOS关键词	CMIP5 MODELS ; TRENDS ; VARIABILITY ; TRANSPORT ; CLIMATE
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/28071
专题	气候变化
作者单位	1.Univ Otago, Dept Phys, Dunedin, New Zealand; 2.Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA
推荐引用方式 GB/T 7714	Pauling, Andrew G.,Smith, Inga J.,Langhorne, Patricia J.,et al. Time-Dependent Freshwater Input From Ice Shelves: Impacts on Antarctic Sea Ice and the Southern Ocean in an Earth System Model[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(20).
APA	Pauling, Andrew G.,Smith, Inga J.,Langhorne, Patricia J.,&Bitz, Cecilia M..(2017).Time-Dependent Freshwater Input From Ice Shelves: Impacts on Antarctic Sea Ice and the Southern Ocean in an Earth System Model.GEOPHYSICAL RESEARCH LETTERS,44(20).
MLA	Pauling, Andrew G.,et al."Time-Dependent Freshwater Input From Ice Shelves: Impacts on Antarctic Sea Ice and the Southern Ocean in an Earth System Model".GEOPHYSICAL RESEARCH LETTERS 44.20(2017).