GSTDTAP
DOI10.1029/2019GL084665
Evaluation of Regional Climate Models Using Regionally Optimized GRACE Mascons in the Amery and Getz Ice Shelves Basins, Antarctica
Mohajerani, Yara1; Velicogna, Isabella1,2; Rignot, Eric1,2
2019-12-16
发表期刊GEOPHYSICAL RESEARCH LETTERS
ISSN0094-8276
EISSN1944-8007
出版年2019
卷号46期号:23页码:13883-13891
文章类型Article
语种英语
国家USA
英文摘要

We develop regionally optimized Gravity Recovery and Climate Experiment (GRACE) solutions to evaluate the mass balance of the drainage basins of Amery Ice Shelf, East Antarctica, and Getz Ice Shelf, West Antarctica. We find that the Amery region is near balance, while the Getz region is rapidly losing mass. We compare the results with the mass budget method (MBM) combining ice discharge along the periphery with surface mass balance derived from three regional climate models: (1) Regional Atmospheric Climate Model (RACMO) 2.3p1 and (2) 2.3p2, and (3) Modele Atmospherique Regional 3.6.41. For Amery, MBM/RACMO2.3p1 agrees with GRACE, while MBM/RACMO2.3p2 and MBM/MAR3.6.41 suggest a positive mass balance. For Getz, all estimates agree with a mass loss and the GRACE results are robust to uncertainties in glacial isostatic adjustment derived from an ensemble 128,000 forward models. Over the period April 2002 to November 2015, the mass loss of the Getz drainage basin is 22.9 +/- 10.9 Gt/yr with an acceleration of 1.6 +/- 0.9 Gt/yr(2).


领域气候变化
收录类别SCI-E
WOS记录号WOS:000505394400030
WOS关键词SURFACE MASS-BALANCE ; EAST ANTARCTICA ; THICKNESS ; GLACIERS ; REASSESSMENT ; LAMBERT ; REANALYSIS ; FLOW
WOS类目Geosciences, Multidisciplinary
WOS研究方向Geology
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文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/225198
专题环境与发展全球科技态势
作者单位1.Univ Calif Irvine, Earth Syst Sci, Irvine, CA 92697 USA;
2.Jet Prop Lab, Pasadena, CA USA
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Mohajerani, Yara,Velicogna, Isabella,Rignot, Eric. Evaluation of Regional Climate Models Using Regionally Optimized GRACE Mascons in the Amery and Getz Ice Shelves Basins, Antarctica[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(23):13883-13891.
APA Mohajerani, Yara,Velicogna, Isabella,&Rignot, Eric.(2019).Evaluation of Regional Climate Models Using Regionally Optimized GRACE Mascons in the Amery and Getz Ice Shelves Basins, Antarctica.GEOPHYSICAL RESEARCH LETTERS,46(23),13883-13891.
MLA Mohajerani, Yara,et al."Evaluation of Regional Climate Models Using Regionally Optimized GRACE Mascons in the Amery and Getz Ice Shelves Basins, Antarctica".GEOPHYSICAL RESEARCH LETTERS 46.23(2019):13883-13891.
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