气候变化领域集成服务门户(CCPortal): Pervasive ice sheet mass loss reflects competing ocean and atmosphere processes

CCPortal

DOI	10.1126/science.aaz5845
	Pervasive ice sheet mass loss reflects competing ocean and atmosphere processes
	Smith B.; Fricker H.A.; Gardner A.S.; Medley B.; Nilsson J.; Paolo Nicholas Holschuh F.S.; Adusumilli S.; Brunt K.; Csatho B.; Harbeck K.; Markus T.; Neumann T.; Siegfried M.R.; Jay Zwally H.
发表日期	2020
ISSN	0036-8075
起始页码	1239
结束页码	1242
卷号	368 期号:6496
英文摘要	Quantifying changes in Earth's ice sheets and identifying the climate drivers are central to improving sea level projections. We provide unified estimates of grounded and floating ice mass change from 2003 to 2019 using NASA's Ice, Cloud and land Elevation Satellite (ICESat) and ICESat-2 satellite laser altimetry. Our data reveal patterns likely linked to competing climate processes: Ice loss from coastal Greenland (increased surface melt), Antarctic ice shelves (increased ocean melting), and Greenland and Antarctic outlet glaciers (dynamic response to ocean melting) was partially compensated by mass gains over ice sheet interiors (increased snow accumulation). Losses outpaced gains, with grounded-ice loss from Greenland (200 billion tonnes per year) and Antarctica (118 billion tonnes per year) contributing 14 millimeters to sea level. Mass lost from West Antarctica's ice shelves accounted for more than 30% of that region's total. © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works
英文关键词	floating ice; ice sheet; ICESat; melting; satellite altimetry; sea level change; snow accumulation; Antarctica; article; atmosphere; body weight; climate; glacier; Greenland; ice sheet; ice shelf; melting point; sea level; Arctic; Greenland; Greenland Ice Sheet
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/245519
作者单位	Polar Science Center, Applied Physics Laboratory, University of Washington, Seattle, WA, United States; Scripps Institution of Oceanography, University of California, San Diego, San Diego, CA, United States; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; Cryospheric Science Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, United States; Department of Earth and Space Sciences, University of Washington, Seattle, WA, United States; Department of Geology, Amherst College, Amherst, MA, United States; Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, United States; Department of Geological Sciences, University at Buffalo, Buffalo, NY, United States; KBR, Greenbelt, MD, United States; Department of Geophysics, Colorado School of Mines, Golden, CO, United States
推荐引用方式 GB/T 7714	Smith B.,Fricker H.A.,Gardner A.S.,et al. Pervasive ice sheet mass loss reflects competing ocean and atmosphere processes[J],2020,368(6496).
APA	Smith B..,Fricker H.A..,Gardner A.S..,Medley B..,Nilsson J..,...&Jay Zwally H..(2020).Pervasive ice sheet mass loss reflects competing ocean and atmosphere processes.Science,368(6496).
MLA	Smith B.,et al."Pervasive ice sheet mass loss reflects competing ocean and atmosphere processes".Science 368.6496(2020).