气候变化领域集成服务门户(CCPortal): Continuity of the Mass Loss of the World's Glaciers and Ice Caps From the GRACE and GRACE Follow-On Missions

CCPortal

DOI	10.1029/2019GL086926
	Continuity of the Mass Loss of the World's Glaciers and Ice Caps From the GRACE and GRACE Follow-On Missions
	Ciracì E.; Velicogna I.; Swenson S.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:9
英文摘要	We use time series of time-variable gravity from the Gravitational Recovery and Climate Experiment (GRACE) and GRACE Follow-On (GRACE-FO) missions to evaluate the mass balance of the world's glaciers and ice caps (GIC) for the time period April 2002 to September 2019, excluding Antarctica and Greenland peripheral glaciers. We demonstrate continuity of the mass balance record across the GRACE/GRACE-FO data gap using independent data from the GMAO Modern-Era Retrospective Analysis for Research and Applications, Version 2 (MERRA-2) reanalysis. We report an average mass loss of 281.5 ± 30 Gt/yr, an acceleration of 50 ± 20 Gt/yr per decade, and a 13-mm cumulative sea level rise for the analyzed period. Seven regions dominate the mass loss, with the largest share from the Arctic: Alaska (72.5 ± 8 Gt/yr), Canadian Arctic Archipelago (73.0 ± 9 Gt/yr), Southern Andes (30.4 ± 13 Gt/yr), High Mountain Asia (HMA) (28.8 ± 11 Gt/yr), Russian Arctic (20.2 ± 6 Gt/yr), Iceland (15.9 ± 4 Gt/yr), and Svalbard (12.1 ± 4 Gt/yr). At the regional level, the analysis of acceleration is complicated by a strong interannual to decadal variability in mass balance that is well reproduced by the GRACE-calibrated MERRA-2 data. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Sea level; Snow; Canadian Arctic Archipelago; Decadal variability; High mountains; Regional levels; Research and application; Retrospective analysis; Sea level rise; Time-variable gravity; Gravitation; acceleration; annual variation; calibration; decadal variation; GRACE; ice cap; mass balance; sea level change; time series analysis; Andes; Arctic; Canadian Arctic; Greenland; Iceland; Svalbard; Svalbard and Jan Mayen
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170381
作者单位	Department of Earth System Science, University of California Irvine, Irvine, CA, United States; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; National Center for Atmospheric Research, Boulder, CO, United States
推荐引用方式 GB/T 7714	Ciracì E.,Velicogna I.,Swenson S.. Continuity of the Mass Loss of the World's Glaciers and Ice Caps From the GRACE and GRACE Follow-On Missions[J],2020,47(9).
APA	Ciracì E.,Velicogna I.,&Swenson S..(2020).Continuity of the Mass Loss of the World's Glaciers and Ice Caps From the GRACE and GRACE Follow-On Missions.Geophysical Research Letters,47(9).
MLA	Ciracì E.,et al."Continuity of the Mass Loss of the World's Glaciers and Ice Caps From the GRACE and GRACE Follow-On Missions".Geophysical Research Letters 47.9(2020).