气候变化领域集成服务门户(CCPortal): Exceptional retreat of Novaya Zemlya's marine-terminating outlet glaciers between 2000 and 2013

CCPortal

DOI	10.5194/tc-11-2149-2017
	Exceptional retreat of Novaya Zemlya's marine-terminating outlet glaciers between 2000 and 2013
	Rachel Carr J.; Bell H.; Killick R.; Holt T.
发表日期	2017
ISSN	19940416
卷号	11 期号:5
英文摘要	Novaya Zemlya (NVZ) has experienced rapid ice loss and accelerated marine-terminating glacier retreat during the past 2 decades. However, it is unknown whether this retreat is exceptional longer term and/or whether it has persisted since 2010. Investigating this is vital, as dynamic thinning may contribute substantially to ice loss from NVZ, but is not currently included in sea level rise predictions. Here, we use remotely sensed data to assess controls on NVZ glacier retreat between 1973/76 and 2015. Glaciers that terminate into lakes or the ocean receded 3.5 times faster than those that terminate on land. Between 2000 and 2013, retreat rates were significantly higher on marine-terminating outlet glaciers than during the previous 27 years, and we observe widespread slowdown in retreat, and even advance, between 2013 and 2015. There were some common patterns in the timing of glacier retreat, but the magnitude varied between individual glaciers. Rapid retreat between 2000 and 2013 corresponds to a period of significantly warmer air temperatures and reduced sea ice concentrations, and to changes in the North Atlantic Oscillation (NAO) and Atlantic Multidecadal Oscillation (AMO). We need to assess the impact of this accelerated retreat on dynamic ice losses from NVZ to accurately quantify its future sea level rise contribution. ©Author(s)2017.
学科领域	Atlantic Multidecadal Oscillation; glacier; glacier dynamics; glacier flow; glacier retreat; ice; ice cover; North Atlantic Oscillation; sea ice; sea level change; temporal analysis; Arkhangelsk [Russian Federation]; Novaya Zemlya; Russian Federation
语种	英语
scopus关键词	Atlantic Multidecadal Oscillation; glacier; glacier dynamics; glacier flow; glacier retreat; ice; ice cover; North Atlantic Oscillation; sea ice; sea level change; temporal analysis; Arkhangelsk [Russian Federation]; Novaya Zemlya; Russian Federation
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/119334
作者单位	School of Geography, Politics and Sociology, Newcastle University, Newcastle-upon-Tyne, NE1 7RU, United Kingdom; Department of Geography, Durham University, Durham, DH13TQ, United Kingdom; Department of Mathematics and Statistics, Lancaster University, Lancaster, LA1 4YF, United Kingdom; Centre for Glaciology, Department of Geography and Earth Sciences, Aberystwyth University, Aberystwyth, SY23 4RQ, United Kingdom
推荐引用方式 GB/T 7714	Rachel Carr J.,Bell H.,Killick R.,et al. Exceptional retreat of Novaya Zemlya's marine-terminating outlet glaciers between 2000 and 2013[J],2017,11(5).
APA	Rachel Carr J.,Bell H.,Killick R.,&Holt T..(2017).Exceptional retreat of Novaya Zemlya's marine-terminating outlet glaciers between 2000 and 2013.Cryosphere,11(5).
MLA	Rachel Carr J.,et al."Exceptional retreat of Novaya Zemlya's marine-terminating outlet glaciers between 2000 and 2013".Cryosphere 11.5(2017).