Novel, Repeated Surveys Reveal New Insights on Sediment Flux Through a Narrow Strait, Bohai, China

Wu, Xiao1,2; Wu, Hui3; Wang, Houjie1,2; Bi, Naishuang1,2; Duan, Haiqin1; Wang, Chenghao1; Bian, Changwei2,4; Xu, Jingping2,5

2019-10-18

10.1029/2019JC015293

JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS   影响因子和分区

2169-9275

2169-9291

Straits are both a choke point and passage through which material and energy are exchanged between two adjoining water bodies. Understanding the mechanisms that drive these exchanges therefore is vital to quantifying the water and sediment budgets in regional and global oceans. Here we present a study in which a novel, phase-averaging method was employed to better estimate the net-suspended sediment fluxes through the entire Bohai Strait, the only passage for the massive Yellow River-delivered sediment to leave the enclosed Bohai Sea for the open Yellow Sea. In winter, the transport through the strait was nearly barotropic in waters well mixed by the energetic winter monsoons. The transport became primarily baroclinic (opposite directions between upper and lower layers) in spring due to stratification, especially in the southern part of the strait. Intermittent but frequent southerly winds in northerly dominated winters were responsible for a net westward sediment transport into the Bohai Sea, a finding contrary to a status quo view. Hence, previous studies in which these intermittent southerly wind busts were not included are believed to have overestimated the sediments export from the Bohai Sea.

residual current phase average method sediment transport Bohai Strait episodic wind reversal

SCI

英语

通讯

China Geological Survey[DD20160137]

Oceanography

Oceanography

WOS:000491316300001

AMER GEOPHYSICAL UNION

GEOSCIENCES

Web of Science

1.Ocean Univ China, Key Lab Submarine Geosci & Prospecting Technol, Coll Marine Geosci, Qingdao, Shandong, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol QNLM, Lab Marine Geol, Qingdao, Shandong, Peoples R China
3.East China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai, Peoples R China
4.Ocean Univ China, CIMST, Phys Oceanog Lab, Qingdao, Shandong, Peoples R China
5.Southern Univ Sci & Technol, Dept Ocean Sci & Engn, Shenzhen, Peoples R China

Wu, Xiao,Wu, Hui,Wang, Houjie,et al. Novel, Repeated Surveys Reveal New Insights on Sediment Flux Through a Narrow Strait, Bohai, China[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2019,124(10):6927-6941.

Wu, Xiao.,Wu, Hui.,Wang, Houjie.,Bi, Naishuang.,Duan, Haiqin.,...&Xu, Jingping.(2019).Novel, Repeated Surveys Reveal New Insights on Sediment Flux Through a Narrow Strait, Bohai, China.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,124(10),6927-6941.

Wu, Xiao,et al."Novel, Repeated Surveys Reveal New Insights on Sediment Flux Through a Narrow Strait, Bohai, China".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 124.10(2019):6927-6941.