DOI: 10.1002/2014GL060369
论文题名: Evidence of Arctic sea ice thinning from direct observations
作者: Renner A.H.H. ; Gerland S. ; Haas C. ; Spreen G. ; Beckers J.F. ; Hansen E. ; Nicolaus M. ; Goodwin H.
刊名: Geophysical Research Letters
ISSN: 0094-9970
EISSN: 1944-9701
出版年: 2014
卷: 41, 期: 14 起始页码: 5029
结束页码: 5036
语种: 英语
英文关键词: Arctic
; Fram Strait
; sea ice
; sea ice thickness
Scopus关键词: Earth sciences
; Geophysics
; Airborne observations
; Arctic
; Direct observations
; Fram strait
; In-situ measurement
; Potential shift
; Sea-ice thickness
; Thickness gradients
; Sea ice
; airborne survey
; gradient analysis
; ice cover
; ice thickness
; sea ice
; time series
; Arctic
; Fram Strait
英文摘要: The Arctic sea ice cover is rapidly shrinking, but a direct, longer-term assessment of the ice thinning remains challenging. A new time series constructed from in situ measurements of sea ice thickness at the end of the melt season in Fram Strait shows a thinning by over 50% during 2003-2012. The modal and mean ice thickness along 79°N decreased at a rate of 0.3 and 0.2 m yr-1, respectively, with long-term averages of 2.5 and 3 m. Airborne observations reveal an east-west thickness gradient across the strait in spring but not in summer due to advection from more different source regions. There is no clear relationship between interannual ice thickness variability and the source regions of the ice. The observed thinning is therefore likely a result of Arctic-wide reduction in ice thickness with a potential shift in exported ice types playing a minor role. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84904526079&doi=10.1002%2f2014GL060369&partnerID=40&md5=66565992e09ddaac7338e5b302f465a4
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7234
Appears in Collections: 气候减缓与适应
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作者单位: Norwegian Polar Institute, Fram Centre, Tromsø, Norway
Recommended Citation:
Renner A.H.H.,Gerland S.,Haas C.,et al. Evidence of Arctic sea ice thinning from direct observations[J]. Geophysical Research Letters,2014-01-01,41(14).