DOI: 10.1016/j.marpolbul.2018.02.014
Scopus记录号: 2-s2.0-85044677944
论文题名: Effects of seasonal variations on sediment-plume streaks from dredging operations
作者: Kim N.-H. ; Pham V.S. ; Hwang J.H. ; Won N.I. ; Ha H.K. ; Im J. ; Kim Y.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2018
卷: 129, 期: 1 起始页码: 26
结束页码: 34
语种: 英语
英文关键词: Dredging
; Plume
; Restoring force
; Streak
; Suspended sediment
Scopus关键词: Mixing
; Mixtures
; Numerical models
; Suspended sediments
; Continental shelves
; Density distributions
; Horizontal transport
; Hydrodynamic process
; Plume
; Restoring forces
; Streak
; Surface mixed layers
; Dredging
; aggregate
; barge
; continental shelf
; dredging
; hydrodynamics
; numerical method
; plume
; seafloor
; seasonal variation
; suspended sediment
; transport process
; article
; computer simulation
; dredging
; hydrodynamics
; particle resuspension
; plume
; satellite imagery
; seasonal variation
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: When mixtures of aggregates and water dredged from the seabed are discharged at the surface into the adjacent water from a barge, coarse sediments sink immediately and fine sediments are suspended forming a plume. Recently, elongated plumes of fine sediment were observed by satellites near a dredging location on the continental shelf. Such plume streaks were longer in certain conditions with seasonality than expected or reported previously. Therefore, the present work studied the appearance of sediment plume with field measurements and numerical simulations and explains the seasonally varying restoring force and thicknesses of the surface mixed layer resulting from the vertical density distribution near the surface, along with mixing by hydrodynamic process. The resulting mixtures, after vertical restoring and mixing with the surroundings, determine the horizontal transport of suspended sediments. A numerical model successfully reproduced and explained the results from field measurements and satellite images along with the seasonal variations. © 2018 The Authors Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/88385
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: Department of Civil and Environmental Engineering, Seoul National University, South Korea; Institute of Construction and Environmental Engineering, Seoul National University, South Korea; Korea Water Resources Corporation, Daejeon, South Korea; Department of Ocean Sciences, Inha University, Incheon, South Korea; School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology, Ulsan, South Korea
Recommended Citation:
Kim N.-H.,Pham V.S.,Hwang J.H.,et al. Effects of seasonal variations on sediment-plume streaks from dredging operations[J]. Marine Pollution Bulletin,2018-01-01,129(1)