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| Intrusion pattern of the Kuroshio Subsurface Water onto the East China Sea continental shelf traced by dissolved inorganic iodine species during the spring and autumn of 2014 | |
Zhou, Peng1,2,3; Song, Xiuxian1,2,3 ; Yuan, Yongquan1,3; Wang, Wentao1,3; Cao, Xihua1,3; Yu, Zhiming1,2,3
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| 2017-11-20 | |
| 发表期刊 | MARINE CHEMISTRY
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| 卷号 | 196页码:24-34 |
| 文章类型 | Article |
| 摘要 | The Kuroshio has an important influence on the circulation systems and ecological environment of the East China Sea (ECS), but the intrusion pattern of the Kuroshio on the ECS continental shelf and its seasonal variability are still debated. Our study shows that evidence from both hydrographic data and dissolved inorganic iodine species (DIIS) suggest that a cold (< 19 degrees C), saline (> 34.4 PSU), dense (> 24.5 kg/m(3)), R-iodate-rich (> 0.35 mu M) and R-iodide-poor (< 0.10 mu m) water (R-iodate and R-iodide are represented by iodate and iodide concentrations normalized to a salinity of 35) occurs at the bottom of the ECS continental shelf (depth < 100 m). The characteristics of this water are similar to those of the Kuroshio Subsurface Water (KSSW), and the intrusion pattern of the KSSW onto the ECS shelf consists of an intrusion from the northeast of Taiwan and another intrusion at similar to 28.5 degrees N along the 100-m isobaths. In the spring of 2014, the KSSW intrusion northeast of Taiwan flowed northwestward then bifurcated into a nearshore branch and an offshore branch at similar to 27.5 degrees N. The nearshore branch flowed approximately northward and finally appeared in the subsurface layer within the 50-m isobath off the Zhejiang coast (similar to 29.5 degrees N). In addition, the offshore branch flowed along the 100-m isobath and reached similar to 29.5 degrees N. The KSSW intrusion northeast of Taiwan was obviously weaker in autumn than in spring. In autumn, the nearshore branch was not observed, and the offshore branch reached only similar to 28 degrees N. In addition to the main intrusion center northeast of Taiwan, the DIIS concentrations indicate that another weaker intrusion from the KSSW occurs at similar to 28.5 degrees N along the 100-m isobaths. However, this phenomenon could not be observed via hydrographic data alone. Moreover, seasonal fluctuation in this additional KSSW intrusion was observed. In spring, this water flowed northwestward and reached 29.5 degrees N, whereas this water was confined along the 100-m isobath in autumn. Overall, DIIS can be used as complementary tracers of the KSSW intrusion, and more details of the intrusion pattern of the KSSW were well revealed. |
| 关键词 | Dissolved Inorganic Iodine Kuroshio Subsurface Water East China Sea Continental Shelf Ocean Circulation Seasonal Variability |
| DOI | 10.1016/j.marchem.2017.07.006 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000415773500003 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/143076 |
| 专题 | 海洋生态与环境科学重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Shandong, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266071, Shandong, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Zhou, Peng,Song, Xiuxian,Yuan, Yongquan,et al. Intrusion pattern of the Kuroshio Subsurface Water onto the East China Sea continental shelf traced by dissolved inorganic iodine species during the spring and autumn of 2014[J]. MARINE CHEMISTRY,2017,196:24-34. |
| APA | Zhou, Peng,Song, Xiuxian,Yuan, Yongquan,Wang, Wentao,Cao, Xihua,&Yu, Zhiming.(2017).Intrusion pattern of the Kuroshio Subsurface Water onto the East China Sea continental shelf traced by dissolved inorganic iodine species during the spring and autumn of 2014.MARINE CHEMISTRY,196,24-34. |
| MLA | Zhou, Peng,et al."Intrusion pattern of the Kuroshio Subsurface Water onto the East China Sea continental shelf traced by dissolved inorganic iodine species during the spring and autumn of 2014".MARINE CHEMISTRY 196(2017):24-34. |
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