Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL085488 |
Replacing GRACE/GRACE-FO C-30 With Satellite Laser Ranging: Impacts on Antarctic Ice Sheet Mass Change | |
Loomis, Bryant D.1; Rachlin, Kenneth E.2; Wiese, David N.3; Landerer, Felix W.3; Luthcke, Scott B.1 | |
2020-02-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:3 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Satellite laser ranging (SLR) observations have long been relied upon for measuring changes in Earth's dynamic oblateness, C-20. This major component of Earth's time-variable gravity field is not well observed by the Gravity Recovery and Climate Experiment (GRACE) and GRACE Follow-On (GRACE-FO) missions, leading to the common practice of replacing their values with those obtained by SLR. The C-30 coefficient, which has a large impact on the recovered Antarctic Ice Sheet mass changes, is shown here to be poorly observed by GRACE/GRACE-FO when either mission is operating without two fully functional accelerometers. The GRACE spacecraft pair operated nominally until October 2016 when one accelerometer was powered off due to battery limitations, while GRACE-FO is currently excluding one accelerometer from the data processing due to elevated noise levels. Beginning with the launch of Laser Relativity Satellite in 2012, SLR-derived C-30 values are suitable for replacing any problematic GRACE/GRACE-FO estimates, enabling the accurate recovery of Antarctic Ice Sheet mass changes, among others. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000529107400068 |
WOS关键词 | GRACE ; GRAVITY |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/279562 |
专题 | 气候变化 |
作者单位 | 1.NASA, Goddard Space Flight Ctr, Geodesy & Geophys Lab, Greenbelt, MD 20771 USA; 2.KBRwyle, Greenbelt, MD USA; 3.CALTECH, Jet Prop Lab, Pasadena, CA USA |
推荐引用方式 GB/T 7714 | Loomis, Bryant D.,Rachlin, Kenneth E.,Wiese, David N.,et al. Replacing GRACE/GRACE-FO C-30 With Satellite Laser Ranging: Impacts on Antarctic Ice Sheet Mass Change[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(3). |
APA | Loomis, Bryant D.,Rachlin, Kenneth E.,Wiese, David N.,Landerer, Felix W.,&Luthcke, Scott B..(2020).Replacing GRACE/GRACE-FO C-30 With Satellite Laser Ranging: Impacts on Antarctic Ice Sheet Mass Change.GEOPHYSICAL RESEARCH LETTERS,47(3). |
MLA | Loomis, Bryant D.,et al."Replacing GRACE/GRACE-FO C-30 With Satellite Laser Ranging: Impacts on Antarctic Ice Sheet Mass Change".GEOPHYSICAL RESEARCH LETTERS 47.3(2020). |
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