气候变化领域集成服务门户(CCPortal): Inter-decadal climate variability induces differential ice response along Pacific-facing West Antarctica

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DOI	10.1038/s41467-022-35471-3
	Inter-decadal climate variability induces differential ice response along Pacific-facing West Antarctica
	Christie, Frazer D. W.; Steig, Eric J.; Gourmelen, Noel; Tett, Simon F. B.; Bingham, Robert G.
发表日期	2023
EISSN	2041-1723
卷号	14 期号:1 页码:11
英文摘要	West Antarctica has experienced dramatic ice losses contributing to global sea-level rise in recent decades, particularly from Pine Island and Thwaites glaciers. Although these ice losses manifest an ongoing Marine Ice Sheet Instability, projections of their future rate are confounded by limited observations along West Antarctica's coastal perimeter with respect to how the pace of retreat can be modulated by variations in climate forcing. Here, we derive a comprehensive, 12-year record of glacier retreat around West Antarctica's Pacific-facing margin and compare this dataset to contemporaneous estimates of ice flow, mass loss, the state of the Southern Ocean and the atmosphere. Between 2003 and 2015, rates of glacier retreat and acceleration were extensive along the Bellingshausen Sea coastline, but slowed along the Amundsen Sea. We attribute this to an interdecadal suppression of westerly winds in the Amundsen Sea, which reduced warm water inflow to the Amundsen Sea Embayment. Our results provide direct observations that the pace, magnitude and extent of ice destabilization around West Antarctica vary by location, with the Amundsen Sea response most sensitive to interdecadal atmosphere-ocean variability. Thus, model projections accounting for regionally resolved ice-ocean-atmosphere interactions will be important for predicting accurately the short-term evolution of the Antarctic Ice Sheet. Systematic satellite, ocean and atmosphere records show the pace and extent of melting in West Antarctica vary by location, with glaciers flowing to the Amundsen Sea most sensitive to atmosphere-ocean variability atop a marine ice-sheet instability.
学科领域	Multidisciplinary Sciences
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS记录号	WOS:000936894300009
来源期刊	NATURE COMMUNICATIONS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/274020
作者单位	University of Cambridge; University of Edinburgh; University of Washington; University of Washington Seattle
推荐引用方式 GB/T 7714	Christie, Frazer D. W.,Steig, Eric J.,Gourmelen, Noel,et al. Inter-decadal climate variability induces differential ice response along Pacific-facing West Antarctica[J],2023,14(1):11.
APA	Christie, Frazer D. W.,Steig, Eric J.,Gourmelen, Noel,Tett, Simon F. B.,&Bingham, Robert G..(2023).Inter-decadal climate variability induces differential ice response along Pacific-facing West Antarctica.NATURE COMMUNICATIONS,14(1),11.
MLA	Christie, Frazer D. W.,et al."Inter-decadal climate variability induces differential ice response along Pacific-facing West Antarctica".NATURE COMMUNICATIONS 14.1(2023):11.