| Observations of the distribution and flocculation of suspended particulate matter in the North Yellow Sea cold water mass | |
| Wang, Zhenyan1,2,3,4; Li, Wenjian1,3; Zhang, Kainan1,3; Agrawal, Y. C.5; Huang, Haijun1,2,3,4 | |
| 2020-12-05 | |
| 发表期刊 | CONTINENTAL SHELF RESEARCH
 |
| ISSN | 0278-4343 |
| 卷号 | 204页码:14 |
| 摘要 | Flocculation has a great influence on the biogeochemical cycle by altering the particle size, density and settling velocity of suspended particulate matter (SPM) from coastal to shelf sea areas. However, the flocculation process in the shelf sea areas of China has not been systematically studied. In this study, the influencing mechanism of the North Yellow Sea cold water mass (NYSCWM) on the distribution and flocculation process of SPM is studied based on a comprehensive investigation during the summer of 2016. The results revealed that the mass concentration and turbidity of SPM showed a decreasing trend from coastal to offshore areas and an increasing trend from surface to near-benthic layers. Sediments from the Shandong subaqueous clinoform that were resuspended by the tidal mixing effect were the main source of inorganic SPM in the North Yellow Sea in summer. The existence of the bottom cold water mass enhanced the thermocline and pycnocline in the North Yellow Sea shelf area. The pycnocline obstructed the vertical diffusion of nutrients in the NYSCWM, resulting in a subsurface maximum chlorophyll a (chl a) layer, which further contributed to the maximum subsurface volume concentration of SPM. Flocculation was ubiquitous in the study area and was the main reason for the asynchronous variability in the mass concentration, turbidity and volume concentration of SPM. Three different kinds of flocculation mechanisms were identified, including the effects of biological activities in water masses above the NYSCWM, physicochemical effects in the near-benthic nepheloid layer within the NYSCWM, and their combined effects in shallow coastal areas. The flocculation of SPM enhanced the transport of particles from the surface to the bottom of the water column and made an important contribution to the formation of the North Yellow Sea mud deposit. |
| 关键词 | Suspended particulate matter Flocculation Particle size distribution LISST North Yellow Sea cold water mass |
| DOI | 10.1016/j.csr.2020.104187 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Natural Science Foundation[41476045] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19060401] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23050502] ; Science & Technology Basic Resources Investigation Program of China[2017FY100802] ; NSFC[NORC2016-02] |
| WOS研究方向 | Oceanography |
| WOS类目 | Oceanography |
| WOS记录号 | WOS:000556749200005 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 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/337002/168124 |
| 专题 | 海洋地质与环境重点实验室 |
| 通讯作者 | Wang, Zhenyan |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao 266071, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 5.Sequoia Sci Inc, 2700 Richards Rd,Suite 107, Bellevue, WA 98005 USA |
| 第一作者单位 | 中国科学院海洋研究所; 中国科学院海洋大科学研究中心 |
| 通讯作者单位 | 中国科学院海洋研究所; 中国科学院海洋大科学研究中心 |
| 推荐引用方式 GB/T 7714 | Wang, Zhenyan,Li, Wenjian,Zhang, Kainan,et al. Observations of the distribution and flocculation of suspended particulate matter in the North Yellow Sea cold water mass[J]. CONTINENTAL SHELF RESEARCH,2020,204:14. |
| APA | Wang, Zhenyan,Li, Wenjian,Zhang, Kainan,Agrawal, Y. C.,&Huang, Haijun.(2020).Observations of the distribution and flocculation of suspended particulate matter in the North Yellow Sea cold water mass.CONTINENTAL SHELF RESEARCH,204,14. |
| MLA | Wang, Zhenyan,et al."Observations of the distribution and flocculation of suspended particulate matter in the North Yellow Sea cold water mass".CONTINENTAL SHELF RESEARCH 204(2020):14. |
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