Estimation of the Ventilation Transit Time Distribution at the Yap-Mariana Junction Using Ar-39, Kr-85 and C-14 Tracers
文献类型：期刊论文
| 作者 | Gu, Ji-Qiang3; Jiang, Wei3 ; Tong, Amin L.3; Yang, Guo-Min3; Dong, Xi-Ze3; Ritterbusch, Florian3; Wang, Fan1,2; Wang, Jianing1,2
|
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
 |
| 出版日期 | 2022-07-01 |
| 卷号 | 127期号:7页码:12 |
| ISSN号 | 2169-9275 |
| 关键词 | transit time distribution atom trap trace analysis |
| DOI | 10.1029/2022JC018417 |
| 通讯作者 | Jiang, Wei(wjiang1@ustc.edu.cn) |
| 英文摘要 | We report on a multi-tracer study at the Yap-Mariana Junction in the western Pacific using three tracers-Kr-85, Ar-39, and C-14-with different half-lives and source functions to the oceans. The vertical profiles of Kr-85 and Ar-39 are measured using the state-of-the-art Atom Trap Trace Analysis method. This method allows analysis of Kr-85 and Ar-39 isotopes with samples collected in regular Niskin bottles. Combined with the calculated natural C-14 data, we infer the ventilation transit-time distribution (TTD) at the Yap-Mariana Junction. The mean ages of the seawater below the thermocline at the Yap-Mariana Junction are over 1,000 years. Moreover earlier Ar-39 and natural C-14 data collected in other parts of the Pacific are used to infer the local TTDs and compared with the one at the Yap-Mariana Junction. The age spectra of the Pacific bottom waters show progressive changes and increasing tails of the old water along the route from south to north. The dominance of the North Pacific Deep Water (NPDW) in the North Pacific and the effect of mixing between old water masses and younger ones at the Yap-Mariana Junction are reflected from the different shapes of the TTDs at these locations. The TTD shows the oldest water exists at about 2,000 m depth in the North Pacific. The western Pacific shows the highest degree of mixing at 1,000 m depth, while the southern Pacific has the highest degree of mixing close to the bottom. |
| 资助项目 | National Key Research and Development Program of China[2016YFA0302200] ; National Natural Science Foundation of China, NSFC[41727901] ; National Natural Science Foundation of China, NSFC[41861224007] ; National Natural Science Foundation of China, NSFC[41961144027] ; Anhui Initiative in Quantum Information Technologies[AHY110000] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB21010200] ; NSFC[91958204] ; NSFC[42090040] |
| WOS研究方向 | Oceanography |
| 语种 | 英语 |
| 出版者 | AMER GEOPHYSICAL UNION |
| WOS记录号 | WOS:000817909300001 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/179646]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室 海洋研究所_深海极端环境与生命过程研究中心 |
| 通讯作者 | Jiang, Wei |
| 作者单位 | 1.Chinese Acad Sci, Ctr Deepsea Res, Inst Oceanol, Qingdao, Peoples R China 2.Chinese Acad Sci, Key Lab Ocean Circulat & Waves, Inst Oceanol, Qingdao, Peoples R China 3.Univ Sci & Technol China, Sch Phys Sci, Hefei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gu, Ji-Qiang,Jiang, Wei,Tong, Amin L.,et al. Estimation of the Ventilation Transit Time Distribution at the Yap-Mariana Junction Using Ar-39, Kr-85 and C-14 Tracers[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2022,127(7):12. |
| APA | Gu, Ji-Qiang.,Jiang, Wei.,Tong, Amin L..,Yang, Guo-Min.,Dong, Xi-Ze.,...&Wang, Jianing.(2022).Estimation of the Ventilation Transit Time Distribution at the Yap-Mariana Junction Using Ar-39, Kr-85 and C-14 Tracers.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,127(7),12. |
| MLA | Gu, Ji-Qiang,et al."Estimation of the Ventilation Transit Time Distribution at the Yap-Mariana Junction Using Ar-39, Kr-85 and C-14 Tracers".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 127.7(2022):12. |
入库方式： OAI收割
来源：海洋研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。