DOI: 10.1002/2014GL061052
论文题名: Regional acceleration in ice mass loss from Greenland and Antarctica using GRACE time-variable gravity data
作者: Velicogna I. ; Sutterley T.C. ; Van Den Broeke M.R.
刊名: Geophysical Research Letters
ISSN: 0094-9578
EISSN: 1944-9309
出版年: 2014
卷: 41, 期: 22 起始页码: 8130
结束页码: 8137
语种: 英语
英文关键词: Antarctica
; Greenland
; mass balance
; remote sensing
; sea level
; time-variable gravity
Scopus关键词: Acceleration
; Ice
; Remote sensing
; Sea level
; Antarctic Peninsula
; Antarctica
; East antarctica
; Gravity recovery and climate experiments
; Greenland
; Mass balance
; Surface mass balance
; Time-variable gravity
; Gravitation
; acceleration
; GRACE
; gravity field
; mass balance
; remote sensing
; sea level change
; Amundsen Sea
; Antarctica
; Arctic
; East Antarctica
; Greenland
; Greenland Ice Sheet
; Queen Maud Land
; Southern Ocean
英文摘要: We use Gravity Recovery and Climate Experiment (GRACE) monthly gravity fields to determine the regional acceleration in ice mass loss in Greenland and Antarctica for 2003-2013. We find that the total mass loss is controlled by only a few regions. In Greenland, the southeast and northwest generate 70% of the loss (280±58 Gt/yr) mostly from ice dynamics, the southwest accounts for 54% of the total acceleration in loss (25.4±1.2 Gt/yr2) from a decrease in surface mass balance (SMB), followed by the northwest (34%), and we find no significant acceleration in the northeast. In Antarctica, the Amundsen Sea (AS) sector and the Antarctic Peninsula account for 64% and 17%, respectively, of the total loss (180±10 Gt/yr) mainly from ice dynamics. The AS sector contributes most of the acceleration in loss (11±4 Gt/yr2), and Queen Maud Land, East Antarctica, is the only sector with a significant mass gain due to a local increase in SMB (63±5 Gt/yr). © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84921510057&doi=10.1002%2f2014GL061052&partnerID=40&md5=9c9a2f4b92da7d59fd8b491109799e6b
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6842
Appears in Collections: 气候减缓与适应
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作者单位: Department of Earth System Science, University of California, Irvine, CA, United States
Recommended Citation:
Velicogna I.,Sutterley T.C.,Van Den Broeke M.R.. Regional acceleration in ice mass loss from Greenland and Antarctica using GRACE time-variable gravity data[J]. Geophysical Research Letters,2014-01-01,41(22).