气候变化领域集成服务门户(CCPortal): Borehole temperatures reveal a changed energy budget at Mill Island, East Antarctica, over recent decades

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DOI	10.5194/tc-7-263-2013
	Borehole temperatures reveal a changed energy budget at Mill Island, East Antarctica, over recent decades
	Roberts J.L.; Moy A.D.; Van Ommen T.D.; Curran M.A.J.; Worby A.P.; Goodwin I.D.; Inoue M.
发表日期	2013
ISSN	19940416
卷号	7 期号:1
英文摘要	A borehole temperature record from the Mill Island (East Antarctica) icecap reveals a large surface warming signal manifested as a 0.75K temperature difference over the approximate 100m depth in the zone of zero annual amplitude below the seasonally varying zone. The temperature profile shows a break in gradient around 49m depth, which we model with inverse numerical simulations, indicating that surface warming started around the austral summer of 1980/81AD±5 yr. This warming of approximately 0.37K per decade is consistent with trends seen in both instrumental and other reconstructions for Antarctica and, therefore, suggests that regional- rather than local-scale processes are largely responsible. Alteration of the surface energy budget arising from changes in radiation balances due to local cloud, the amount of liquid deposition and local air temperatures associated with altered air/sea exchanges also potentially plays a role at this location due to the proximity of the Shackleton Ice Shelf and sea-ice zone. © Author(s) 2013.
语种	英语
来源期刊	Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120317
作者单位	Department of Sustainability, Environment, Water, Population and Communities, Australian Antarctic Division, Channel Highway, Kingston, TAS 7050, Australia; Antarctic Climate and Ecosystems Cooperative Research Centre, University of Tasmania, Private Bag 80, Hobart, TAS 7001, Australia; CSIRO Marine and Atmospheric Research, Castray Esplanade, Hobart, TAS 7000, Australia; Marine Climate Risk Group, Department of Environment and Geography, Macquarie University, Eastern Road, NSW, 2109, Australia; Institute for Marine and Antarctic Studies, University of Tasmania, Private Bag 129, Hobart, TAS 7001, Australia
推荐引用方式 GB/T 7714	Roberts J.L.,Moy A.D.,Van Ommen T.D.,et al. Borehole temperatures reveal a changed energy budget at Mill Island, East Antarctica, over recent decades[J],2013,7(1).
APA	Roberts J.L..,Moy A.D..,Van Ommen T.D..,Curran M.A.J..,Worby A.P..,...&Inoue M..(2013).Borehole temperatures reveal a changed energy budget at Mill Island, East Antarctica, over recent decades.Cryosphere,7(1).
MLA	Roberts J.L.,et al."Borehole temperatures reveal a changed energy budget at Mill Island, East Antarctica, over recent decades".Cryosphere 7.1(2013).