Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL084499 |
Variability of Sediment Accumulation Rates in an Antarctic Fjord | |
Eidam, E. F.1; Nittrouer, C. A.2; Lundesgaard, O.3; Homolka, K. K.2; Smith, C. R.4 | |
2019-11-30 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:22页码:13271-13280 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Norway |
英文摘要 | Fjords on the West Antarctic Peninsula (WAP) serve as sediment traps, preserving histories of glacial sediment supply. Regional warming trends are expected to change sediment supplies, altering water quality, depositional history, and ecosystem drivers. Our ability to assess magnitudes of these changes is limited by sparse data on modern sediment accumulation. Twelve new cores and four existing cores from Andvord Bay were used to characterize variability in sediment accumulation rates. These range from 1.5 to 7.9 mm/year (0.12 to 0.56 g center dot cm(-2)center dot year(-1)). Spatial differences and a weak down-fjord gradient in rates suggest diverse sediment sources, including from outside the fjord. This data set provides a comprehensive assessment of sedimentation during the past century, indicating little change in rates due to recent WAP warming, and sets a benchmark for assessing climate-related changes in sediment delivery and ecosystem drivers (e.g., burial disturbance) in the fjord over coming decades. |
英文关键词 | fjord sediment West Antarctic Peninsula tidewater glacier radiochronology accumulation |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000499482600001 |
WOS关键词 | PENINSULA ; GLACIER ; EROSION ; SHELF ; DEPOSITION ; TRANSECT ; RETREAT ; FACIES ; WEST ; BAYS |
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/225136 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Univ North Carolina Chapel Hill, Dept Marine Sci, Chapel Hill, NC 27599 USA; 2.Univ Washington, Sch Oceanog, Seattle, WA 98195 USA; 3.Norwegian Polar Res Inst, Tromso, Norway; 4.Univ Hawaii Manoa, Sch Ocean & Earth Sci & Technol, Honolulu, HI 96822 USA |
推荐引用方式 GB/T 7714 | Eidam, E. F.,Nittrouer, C. A.,Lundesgaard, O.,et al. Variability of Sediment Accumulation Rates in an Antarctic Fjord[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(22):13271-13280. |
APA | Eidam, E. F.,Nittrouer, C. A.,Lundesgaard, O.,Homolka, K. K.,&Smith, C. R..(2019).Variability of Sediment Accumulation Rates in an Antarctic Fjord.GEOPHYSICAL RESEARCH LETTERS,46(22),13271-13280. |
MLA | Eidam, E. F.,et al."Variability of Sediment Accumulation Rates in an Antarctic Fjord".GEOPHYSICAL RESEARCH LETTERS 46.22(2019):13271-13280. |
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