Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL074688 |
Marine radiocarbon reservoir age simulations for the past 50,000years | |
Butzin, M.; Koehler, P.; Lohmann, G. | |
2017-08-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:16 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany |
英文摘要 | Radiocarbon (C-14) dating calibration for the last glacial period largely relies on cross-dated marine C-14 records. However, marine reservoirs are isotopically depleted with respect to the atmosphere and therefore have to be corrected by the Marine Radiocarbon Ages of surface waters (MRAs), whose temporal variabilities are largely unknown. Here we present simulations of the spatial and temporal variability in MRAs using a three-dimensional ocean circulation model covering the past 50,000years. Our simulations are compared to reconstructions of past surface ocean C-14. Running the model with different climatic boundary conditions, we find that low-latitude to midlatitude MRAs have varied between 400 and 1200 (14)Cyears, with values of about 780 (14)Cyears at the Last Glacial Maximum. Reservoir ages exceeding 2000 (14)Cyears are simulated in the polar oceans. Our simulation results can be used as first-order approximation of the MRA variability in future radiocarbon calibration efforts. |
英文关键词 | radiocarbon dating marine reservoir age ocean modeling |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000410658800045 |
WOS关键词 | U-TH AGES ; NORTH-ATLANTIC ; OCEAN CIRCULATION ; CARIACO BASIN ; HEINRICH EVENTS ; SOUTHERN-OCEAN ; GLACIAL OCEAN ; SEA-ICE ; C-14 ; CALIBRATION |
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/25786 |
专题 | 气候变化 |
作者单位 | Helmholtz Zentrum Polar & Meeresforsch, Alfred Wegener Inst, Bremerhaven, Germany |
推荐引用方式 GB/T 7714 | Butzin, M.,Koehler, P.,Lohmann, G.. Marine radiocarbon reservoir age simulations for the past 50,000years[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(16). |
APA | Butzin, M.,Koehler, P.,&Lohmann, G..(2017).Marine radiocarbon reservoir age simulations for the past 50,000years.GEOPHYSICAL RESEARCH LETTERS,44(16). |
MLA | Butzin, M.,et al."Marine radiocarbon reservoir age simulations for the past 50,000years".GEOPHYSICAL RESEARCH LETTERS 44.16(2017). |
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