Sediment resuspension in winter in an exceptional low suspended sediment concentration area off Qinhuangdao in the Bohai Sea
文献类型：期刊论文
| 作者 | Jiang, Man3,4; Pang, Chongguang1,3,5; Liu, Zhiliang2; Jiang, Jingbo1,3,5 |
| 刊名 | ESTUARINE COASTAL AND SHELF SCIENCE
 |
| 出版日期 | 2020-10-30 |
| 卷号 | 245页码:16 |
| 关键词 | Turbulent resuspension event High turbulent kinetic energy Wave-dominated bed shear stress Bottom-mooring observation system Bohai sea |
| ISSN号 | 0272-7714 |
| DOI | 10.1016/j.ecss.2020.106859 |
| 通讯作者 | Pang, Chongguang(chgpang@qdio.ac.cn) |
| 英文摘要 | Seawater with low suspended sediment concentration (SSC) and high salinity dominates the sea area off Qinhuangdao all year round, especially in winter, which is an exceptional case since most of the coastal waters in the Bohai Sea are turbid. Being one of the most famous coastal tourist resorts in the area, it is crucial to keep the seawater around Qinhuangdao clear and unpolluted. Three bottom-mooring systems were deployed in the low SSC region from February to March 2017 for up to 22 days to reveal the processes and mechanisms of local sediment resuspension. The observation results showed that during the strongest wind of the whole deployment period, the sediment resuspension process included a turbulent resuspension event that occurred in the high turbulent kinetic energy period, and a continuous resuspension event when the bed shear stress (BSS) was larger than critical. The turbulent resuspension event was characterised by high-turbidity resuspension of sediments near the bed in the form of pulsation, with a depth of influence not more than the thickness of the bottom boundary layer. It was found to be triggered by strong turbulence driven by storm winds. In contrast the continuous resuspension could be attributed to high wave-dominated BSS. During storm winds, high concentrations of suspended sediment in the upper and middle layers appeared to lag the wind speed by about 8-10 h. In contrast, the turbulent resuspension event occurred at the same time as the strong winds. In-situ measurements from all three moorings indicate that it is the local weak sediment resuspension, even under the influence of storm winds in winter, that causes the formation of the low SSC area off Qinhuangdao. |
| 资助项目 | National Natural Science Foundation of China[41576060] ; National Key R&D Program of China[2019YFC1407903] ; National Key R&D Program of China[2016YFC0301203] ; Natural Science Foundation of China[U1406401] ; Natural Science Foundation of Shandong Province[U1406401] ; Hebei Science and Technology Project[19273301D] ; Research Foundation for Advanced Talents[2019Y8020] |
| WOS研究方向 | Marine & Freshwater Biology ; Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:000582677500005 |
| 出版者 | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/169207]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室 |
| 通讯作者 | Pang, Chongguang |
| 作者单位 | 1.Qingdao Natl Lab Marine Sci & Technol, Lab Ocean & Climate Dynam, Qingdao 266237, Peoples R China 2.Hebei Normal Univ Sci & Technol, Inst Marine Sci & Technol, Qinhuangdao 066600, Hebei, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Man,Pang, Chongguang,Liu, Zhiliang,et al. Sediment resuspension in winter in an exceptional low suspended sediment concentration area off Qinhuangdao in the Bohai Sea[J]. ESTUARINE COASTAL AND SHELF SCIENCE,2020,245:16. |
| APA | Jiang, Man,Pang, Chongguang,Liu, Zhiliang,&Jiang, Jingbo.(2020).Sediment resuspension in winter in an exceptional low suspended sediment concentration area off Qinhuangdao in the Bohai Sea.ESTUARINE COASTAL AND SHELF SCIENCE,245,16. |
| MLA | Jiang, Man,et al."Sediment resuspension in winter in an exceptional low suspended sediment concentration area off Qinhuangdao in the Bohai Sea".ESTUARINE COASTAL AND SHELF SCIENCE 245(2020):16. |
入库方式： OAI收割
来源：海洋研究所
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