Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL075419 |
Ocean Bottom Deformation Due To Present-Day Mass Redistribution and Its Impact on Sea Level Observations | |
Frederikse, Thomas1; Riva, Riccardo E. M.1; King, Matt A.2 | |
2017-12-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:24 |
文章类型 | Article |
语种 | 英语 |
国家 | Netherlands; Australia |
英文摘要 | Present-day mass redistribution increases the total ocean mass and, on average, causes the ocean bottom to subside elastically. Therefore, barystatic sea level rise is larger than the resulting global mean geocentric sea level rise, observed by satellite altimetry and GPS-corrected tide gauges. We use realistic estimates of mass redistribution from ice mass loss and land water storage to quantify the resulting ocean bottom deformation and its effect on global and regional ocean volume change estimates. Over 1993-2014, the resulting globally averaged geocentric sea level change is 8% smaller than the barystatic contribution. Over the altimetry domain, the difference is about 5%, and due to this effect, barystatic sea level rise will be underestimated by more than 0.1 mm/yr over 1993-2014. Regional differences are often larger: up to 1mm/yr over the Arctic Ocean and 0.4 mm/yr in the South Pacific. Ocean bottom deformation should be considered when regional sea level changes are observed in a geocentric reference frame. |
英文关键词 | sea level elastic deformation ice mass loss altimetry GPS tide gauges |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000422954700007 |
WOS关键词 | VERTICAL LAND MOTION ; RISE ; UNCERTAINTY ; ANTARCTICA ; BUDGET |
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/28198 |
专题 | 气候变化 |
作者单位 | 1.Delft Univ Technol, Dept Geosci & Remote Sensing, Delft, Netherlands; 2.Univ Tasmania, Sch Land & Food, Surveying & Spatial Sci, Hobart, Tas, Australia |
推荐引用方式 GB/T 7714 | Frederikse, Thomas,Riva, Riccardo E. M.,King, Matt A.. Ocean Bottom Deformation Due To Present-Day Mass Redistribution and Its Impact on Sea Level Observations[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(24). |
APA | Frederikse, Thomas,Riva, Riccardo E. M.,&King, Matt A..(2017).Ocean Bottom Deformation Due To Present-Day Mass Redistribution and Its Impact on Sea Level Observations.GEOPHYSICAL RESEARCH LETTERS,44(24). |
MLA | Frederikse, Thomas,et al."Ocean Bottom Deformation Due To Present-Day Mass Redistribution and Its Impact on Sea Level Observations".GEOPHYSICAL RESEARCH LETTERS 44.24(2017). |
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