IOCAS-IR  > 海洋地质与环境重点实验室
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
Source PublicationCONTINENTAL SHELF RESEARCH
ISSN0278-4343
Volume204Pages:14
AbstractFlocculation 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.
KeywordSuspended particulate matter Flocculation Particle size distribution LISST North Yellow Sea cold water mass
DOI10.1016/j.csr.2020.104187
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaOceanography
WOS SubjectOceanography
WOS IDWOS:000556749200005
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/168124
Collection海洋地质与环境重点实验室
Corresponding AuthorWang, Zhenyan
Affiliation1.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
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Recommended Citation
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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