Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL082663 |
The Ocean's Global Ar-39 Distribution Estimated With an Ocean Circulation Inverse Model | |
Holzer, Mark1; DeVries, Timothy2,3; Smethie, William, Jr.4 | |
2019-07-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:13页码:7491-7499 |
文章类型 | Article |
语种 | 英语 |
国家 | Australia; USA |
英文摘要 | Ar-39 with its 269-year half-life has great potential for constraining ocean ventilation and transport. Here we estimate the distribution of Ar-39 using a steady ocean circulation inverse model. Our estimates match available Ar-39 measurements to within an absolute error of similar to 9% modern argon without major biases. We find that Ar-39 traces out the world ocean's ventilation pathways and that the Ar-39 age Gamma(Ar) and the ideal mean age have broadly similar large-scale patterns. At the surface, Ar-39 is close to saturated except at high latitudes. Undersaturation imparts a finite Ar-39 age to surface waters relative to the atmosphere, with peak values exceeding 100 years in Antarctic waters. This reservoir age is propagated into the interior with Antarctic Bottom Water, elevating Gamma(Ar) by similar to 50 years in the deep Pacific and Indian oceans. Our estimates identify the large-scale gradients and uncertainty patterns of Ar-39, thus providing guidance for future measurements. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000476960100049 |
WOS关键词 | VENTILATION ; C-14 ; AGES ; SECTION ; WATERS |
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/185068 |
专题 | 气候变化 |
作者单位 | 1.Univ New South Wales, Sch Math & Stat, Dept Appl Math, Sydney, NSW, Australia; 2.Univ Calif Santa Barbara, Earth Res Inst, Santa Barbara, CA 93106 USA; 3.Univ Calif Santa Barbara, Dept Geog, Santa Barbara, CA 93106 USA; 4.Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY USA |
推荐引用方式 GB/T 7714 | Holzer, Mark,DeVries, Timothy,Smethie, William, Jr.. The Ocean's Global Ar-39 Distribution Estimated With an Ocean Circulation Inverse Model[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(13):7491-7499. |
APA | Holzer, Mark,DeVries, Timothy,&Smethie, William, Jr..(2019).The Ocean's Global Ar-39 Distribution Estimated With an Ocean Circulation Inverse Model.GEOPHYSICAL RESEARCH LETTERS,46(13),7491-7499. |
MLA | Holzer, Mark,et al."The Ocean's Global Ar-39 Distribution Estimated With an Ocean Circulation Inverse Model".GEOPHYSICAL RESEARCH LETTERS 46.13(2019):7491-7499. |
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