DOI: 10.1016/j.gloplacha.2015.02.006
论文题名: Accelerated mass loss from Greenland ice sheet: Links to atmospheric circulation in the North Atlantic
作者: Seo K.-W. ; Waliser D.E. ; Lee C.-K. ; Tian B. ; Scambos T. ; Kim B.-M. ; van Angelen J.H. ; van den Broeke M.R.
刊名: Global and Planetary Change
ISSN: 0921-8181
出版年: 2015
卷: 128 起始页码: 61
结束页码: 71
语种: 英语
英文关键词: Greenland ice mass loss acceleration
; North Atlantic oscillation
; Surface mass balance
Scopus关键词: Atmospheric pressure
; Climate models
; Climatology
; Digital storage
; Earth (planet)
; Glacial geology
; Glaciers
; Gravitation
; Meteorology
; Oceanography
; Runoff
; Sea level
; Acceleration rates
; Atmospheric circulation
; Climate variability
; Greenland Ice Sheet
; Ice mass loss
; North Atlantic oscillations
; Regional climate modeling
; Surface mass balance
; Ice
; acceleration
; atmospheric circulation
; climate modeling
; mass balance
; meltwater
; North Atlantic Oscillation
; precipitation intensity
; runoff
; sea level change
; Arctic
; Atlantic Ocean
; Atlantic Ocean (North)
; Greenland
; Greenland Ice Sheet
英文摘要: Understanding the mechanisms that drive the mass imbalance of the Greenland ice sheet (GrIS) is critical to the accurate projection of its contribution to future sea level rise. Greenland's ice mass loss has been accelerating recently. Using satellite Earth-gravity and regional climate model data, we show that the acceleration rate of Greenland ice mass loss from 2003 to 2012 is -13.9±2.0Gt/yr2, which results mainly from an increase of meltwater runoff (-6.3±1.1Gt/yr2) and a decrease of precipitation (-4.8±1.1Gt/yr2). Before the extreme surface melting in the summers of 2010 and 2012, the decrease of precipitation (-9.7±2.5Gt/yr2) was a larger contributor to the ice mass loss acceleration than the increase of runoff (-2.1±2.2Gt/yr2). Furthermore, we show that the North Atlantic Oscillation (NAO) is linked to the precipitation decrease during summer, and its recent influence to Greenland is anomalously large possibly due to the change in atmospheric circulation in the North Atlantic. These results indicate that inter-annual climate variability is playing a significant role in the recently observed Greenland ice mass loss acceleration, underscoring the difficulty of projecting future sea level rise based on the recent observations of GrIS mass loss. © 2015 Elsevier B.V. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84924301593&doi=10.1016%2fj.gloplacha.2015.02.006&partnerID=40&md5=9f29578495ae259d4fc5e59c83b836e2
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/11538
Appears in Collections: 全球变化的国际研究计划 气候变化与战略
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作者单位: Department of Earth Science Education, Seoul National University, Seoul, South Korea
Recommended Citation:
Seo K.-W.,Waliser D.E.,Lee C.-K.,et al. Accelerated mass loss from Greenland ice sheet: Links to atmospheric circulation in the North Atlantic[J]. Global and Planetary Change,2015-01-01,128.