Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018GL078173 |
Mass Loss of Totten and Moscow University Glaciers, East Antarctica, Using Regionally Optimized GRACE Mascons | |
Mohajerani, Yara1; Velicogna, Isabella1,2; Rignot, Eric1,2 | |
2018-07-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:14页码:7010-7018 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Totten and Moscow University glaciers, in the marine-based sector of East Antarctica, contain enough ice to raise sea level by 5 m. Obtaining precise measurements of their mass balance is challenging owing to large area of the basins and the small mass balance signal compared to West Antarctic glaciers. Here we employ a locally optimized processing of Gravity Recovery and Climate Experiment (GRACE) harmonics to evaluate their mass balance at the sub-basin scale and compare the results with mass budget method (MBM) estimates using regional atmospheric climate model version 2.3 (RACMO2.3) or Modele Atmospherique Regional version 3.6.4 (MAR3.6.4). The sub-basin mass loss estimate for April 2002 to November 2015 is 14.8 4.3 Gt/yr, which is weakly affected by glacial isostatic adjustment uncertainties (1.4 Gt/yr). This result agrees with MBM/RACMO2.3 (15.8 +/- 2.0 Gt/yr), whereas MBM/MAR3.6.4 underestimates the loss (6.6 +/- 1.6 Gt/yr). For the entire drainage, the mass loss for April 2002 to August 2016 is 18.5 +/- 6.6 Gt/yr, or 15 +/- 4% of its ice flux. These results provide unequivocal evidence for mass loss in this East Antarctic sector. |
英文关键词 | Totten glacier East Antarctica GRACE regional climate models mass budget mass balance |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000442582100029 |
WOS关键词 | TIME-VARIABLE GRAVITY ; SEA-LEVEL RISE ; ICE-SHEET ; ISOSTATIC-ADJUSTMENT ; CLIMATE EXPERIMENT ; BALANCE ; MODEL ; GREENLAND ; RECOVERY ; MISSION |
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/25663 |
专题 | 气候变化 |
作者单位 | 1.Univ Calif Irvine, Earth Syst Sci, Irvine, CA 92697 USA; 2.Jet Prop Lab, Pasadena, CA USA |
推荐引用方式 GB/T 7714 | Mohajerani, Yara,Velicogna, Isabella,Rignot, Eric. Mass Loss of Totten and Moscow University Glaciers, East Antarctica, Using Regionally Optimized GRACE Mascons[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(14):7010-7018. |
APA | Mohajerani, Yara,Velicogna, Isabella,&Rignot, Eric.(2018).Mass Loss of Totten and Moscow University Glaciers, East Antarctica, Using Regionally Optimized GRACE Mascons.GEOPHYSICAL RESEARCH LETTERS,45(14),7010-7018. |
MLA | Mohajerani, Yara,et al."Mass Loss of Totten and Moscow University Glaciers, East Antarctica, Using Regionally Optimized GRACE Mascons".GEOPHYSICAL RESEARCH LETTERS 45.14(2018):7010-7018. |
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