Accelerated ice mass depletion revealed by low-degree gravity field from satellite laser ranging: Greenland, 1991-2011

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题名:	Accelerated ice mass depletion revealed by low-degree gravity field from satellite laser ranging: Greenland, 1991-2011
作者:	趙丰;Matsuo, Koji;Chao, Benjamin F.;Otsubo, Toshimichi;Heki, Kosuke
贡献者:	地球科學學院地球科學學系
关键词:	Acceleration;Climate;Depletion;Earth sciences;Earth, ocean, space;Exact sciences and technology;Global positioning systems;GPS;GRACE (experiment);Gravimetry;Gravitation;Gravitational fields;Gravity;Greenland;Ice;satellite geodesy;Satellite laser ranging;Satellites;SLR;time-variable gravity;Tracking
日期:	2013-09-16
上传时间:	2026-04-23 11:27:33 (UTC+8)
出版者:	Wiley-Blackwell;Washington, DC: Blackwell Publishing Ltd
摘要:	摘要： We detect the acceleration of ice mass depletion in Greenland for the period 1991–2011 from the low-degree gravity field up to degree and order 4 derived from the Satellite Laser Ranging (SLR) data. Between 2003 and 2011, during the era when the GRACE (Gravity Recovery and Climate Experiment) satellite data are available, our SLR results of gravity changes agree well with GRACE showing significant negative patterns in Greenland. Prior to that, the SLR linear trend maps show a near balance in Greenland ice mass during 1991–2002 (after the glacial isostatic adjustment is accounted for using model values). We further confirm the consistency of our SLR results with the vertical crustal uplift of the region observed by the Global Positining System (GPS) which manifests ice mass loading/unloading. Thus, the SLR data series constitute a continuous benchmark for the time history of the Greenland ice mass changes for over two decades.(en) 其他題名： Geophys. Res. Lett 出版者： Washington, DC: Blackwell Publishing Ltd 出版日期： 2013-09-16 出處： Geophysical Research Letters, 2013-09, Vol.40 (17), p.4662-4667 資源來源： Wiley Online Library - AutoHoldings Journals 版權： 2013. American Geophysical Union. All Rights Reserved. 版權： 2014 INIST-CNRS 識別號： ISSN: 0094-8276 識別號： ISSN: 1944-8007 識別號： EISSN: 1944-8007 識別號： DOI: 10.1002/grl.50900 識別號： CODEN: GPRLAJ
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