IOCAS-IR  > 海洋环流与波动重点实验室
Observed cross-shelf suspended sediment flux in the southern Yellow Sea in winter
Pang, Chongguang1,2,3; Yuan, Dongliang1,2,3; Jiang, Man1,4; Chu, Fushuo1,4; Li, Yao1,2,3
2020
Source PublicationMARINE GEOLOGY
ISSN0025-3227
Volume419Pages:11
Corresponding AuthorPang, Chongguang(chgpang@qdio.ac.cn) ; Yuan, Dongliang(dyuan@qdio.ac.cn)
AbstractThe cross-shelf circulation and its transport in the Yellow and East China Seas (YECSs) are very important to global ocean material exchanges and regional environment. A field survey including a long-term mooring, 89 sample stations, 25 drifters, etc., was conducted in the YECSs in the winter of 2015 to investigate the cross-shelf transport of the sediment plume over the Changjiang Bank. The observation shows that the northern East China Sea (ECS) current carries low temperature, low salinity, and high turbidity coastal waters southeastward from the radial tidal sand ridge off the Jiangsu coast to the outer shelf south of Cheju Island. The northern ECS current with an average speed of 4.7 cm/s and in the average direction of 100 degrees from due north is not only measured directly by the 21-day mooring, but also recorded in trajectories of 6 satellite-tracked surface drifters. The mean current of the northern ECS current flows roughly along the 30-50 m isobaths with a small cross-isobath component. The mooring data indicate that the sediment flux is dominated by the mean advection of mean sediment concentration, resulting in an average suspended sediment flux of 52.23 g s(-1) m(-1) in the direction of 105 degrees. According to the suspended sediment flux decomposition, the flux due to tidal currents is calculated to be one order of magnitude smaller than the advection by subtidal currents, implying that the sediment plume is unlikely generated by the tidal pumping, but is likely maintained by the advection. The amount of the suspended sediments carried by the northern ECS current is estimated to reach 40.62 million tons assuming an average width of 100 km of the turbid plume during December through February. The transport by the northern ECS current is suggested to provide sufficient amount of sediments for the Southwestern Cheju Island Mud to grow in time.
KeywordCross-shelf suspended sediment flux Sediment plume Northern East China Sea current Southwestern Cheju Island Mud Long-term mooring
DOI10.1016/j.margeo.2019.106067
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41576060] ; Natural Science Foundation of China[U1406401] ; Natural Science Foundation of Shandong Province[U1406401] ; National Key R&D Program of China[2016YFC0301203] ; Major State Basic Research Development Program of China[2012CB956004]
WOS Research AreaGeology ; Oceanography
WOS SubjectGeosciences, Multidisciplinary ; Oceanography
WOS IDWOS:000508490400010
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/164461
Collection海洋环流与波动重点实验室
Corresponding AuthorPang, Chongguang; Yuan, Dongliang
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Ocean & Climate Dynam, Qingdao 266237, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
First Author AffilicationKey Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationKey Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Pang, Chongguang,Yuan, Dongliang,Jiang, Man,et al. Observed cross-shelf suspended sediment flux in the southern Yellow Sea in winter[J]. MARINE GEOLOGY,2020,419:11.
APA Pang, Chongguang,Yuan, Dongliang,Jiang, Man,Chu, Fushuo,&Li, Yao.(2020).Observed cross-shelf suspended sediment flux in the southern Yellow Sea in winter.MARINE GEOLOGY,419,11.
MLA Pang, Chongguang,et al."Observed cross-shelf suspended sediment flux in the southern Yellow Sea in winter".MARINE GEOLOGY 419(2020):11.
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