气候变化领域集成服务门户(CCPortal): Widespread increase in dynamic imbalance in the Getz region of Antarctica from 1994 to 2018

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DOI	10.1038/s41467-021-21321-1
	Widespread increase in dynamic imbalance in the Getz region of Antarctica from 1994 to 2018
	Selley H.L.; Hogg A.E.; Cornford S.; Dutrieux P.; Shepherd A.; Wuite J.; Floricioiu D.; Kusk A.; Nagler T.; Gilbert L.; Slater T.; Kim T.-W.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	The Getz region of West Antarctica is losing ice at an increasing rate; however, the forcing mechanisms remain unclear. Here we use satellite observations and an ice sheet model to measure the change in ice speed and mass balance of the drainage basin over the last 25-years. Our results show a mean increase in speed of 23.8 % between 1994 and 2018, with three glaciers accelerating by over 44 %. Speedup across the Getz basin is linear, with speedup and thinning directly correlated confirming the presence of dynamic imbalance. Since 1994, 315 Gt of ice has been lost contributing 0.9 ± 0.6 mm global mean sea level, with increased loss since 2010 caused by a snowfall reduction. Overall, dynamic imbalance accounts for two thirds of the mass loss from this region of West Antarctica over the past 25-years, with a longer-term response to ocean forcing the likely driving mechanism. © 2021, The Author(s).
语种	英语
scopus关键词	drainage basin; ice sheet; long-term change; mass balance; satellite data; sea level change; Antarctica; article; body weight; catchment area (hydrology); glacier; ice sheet; sea level; velocity; Antarctica; Getz Ice Shelf; West Antarctica
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/250761
作者单位	Centre for Polar Observation and Modelling, School of Earth and Environment, University of Leeds, Leeds, United Kingdom; School of Earth and Environment, University of Leeds, Leeds, United Kingdom; Department of Geography, Swansea University, Swansea, United Kingdom; Lamont-Doherty Earth Observatory, Colombia University, New York, United States; ENVEO IT GmbH, Innsbruck, Austria; German Aerospace Centre (DLR), Remote Sensing Technology Institute, Wessling, Germany; DTU Space, National Space Institute, Technical University of Denmark, Lyngby, Denmark; Mullard Space Science Laboratory, Department of Space & Climate Physics, University College London, London, United Kingdom; Korea Polar Research Institute, Incheon, South Korea; British Antarctic Survey, Natural Environment Research Council (NERC), Cambridge, United Kingdom
推荐引用方式 GB/T 7714	Selley H.L.,Hogg A.E.,Cornford S.,et al. Widespread increase in dynamic imbalance in the Getz region of Antarctica from 1994 to 2018[J],2021,12(1).
APA	Selley H.L..,Hogg A.E..,Cornford S..,Dutrieux P..,Shepherd A..,...&Kim T.-W..(2021).Widespread increase in dynamic imbalance in the Getz region of Antarctica from 1994 to 2018.Nature Communications,12(1).
MLA	Selley H.L.,et al."Widespread increase in dynamic imbalance in the Getz region of Antarctica from 1994 to 2018".Nature Communications 12.1(2021).