DOI: 10.5194/tc-8-1699-2014
Scopus记录号: 2-s2.0-84907455830
论文题名: Sensitivity of the dynamics of Pine Island Glacier, West Antarctica, to climate forcing for the next 50 years
作者: Seroussi H ; , Morlighem M ; , Rignot E ; , Mouginot J ; , Larour E ; , Schodlok M ; , Khazendar A
刊名: Cryosphere
ISSN: 19940416
出版年: 2014
卷: 8, 期: 5 起始页码: 1699
结束页码: 1710
语种: 英语
英文关键词: climate forcing
; glacier
; grounding line
; ice shelf
; mass balance
; melting
; sea level change
; Antarctica
; Pine Island Glacier
; West Antarctica
英文摘要: Pine Island Glacier, a major contributor to sea level rise in West Antarctica, has been undergoing significant changes over the last few decades. Here, we employ a three-dimensional, higher-order model to simulate its evolution over the next 50 yr in response to changes in its surface mass balance, the position of its calving front and ocean-induced ice shelf melting. Simulations show that the largest climatic impact on ice dynamics is the rate of ice shelf melting, which rapidly affects the glacier speed over several hundreds of kilometers upstream of the grounding line. Our simulations show that the speedup observed in the 1990s and 2000s is consistent with an increase in sub-ice-shelf melting. According to our modeling results, even if the grounding line stabilizes for a few decades, we find that the glacier reaction can continue for several decades longer. Furthermore, Pine Island Glacier will continue to change rapidly over the coming decades and remain a major contributor to sea level rise, even if ocean-induced melting is reduced. © Author(s) 2014. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/74791
Appears in Collections: 影响、适应和脆弱性 气候变化与战略
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作者单位: Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive MS 300-323, Pasadena, CA, United States; University of California, Irvine, Department of Earth System Science, Croul Hall, Irvine, CA, United States; Joint Institute for Regional Earth System Science and Engineering, University of California, Los Angeles, CA, United States
Recommended Citation:
Seroussi H,, Morlighem M,, Rignot E,et al. Sensitivity of the dynamics of Pine Island Glacier, West Antarctica, to climate forcing for the next 50 years[J]. Cryosphere,2014-01-01,8(5)