气候变化领域集成服务门户(CCPortal): Cohesive Sediment Erosion in a Combined Wave-Current Boundary Layer

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DOI	10.1029/2020JC016655
	Cohesive Sediment Erosion in a Combined Wave-Current Boundary Layer
	Egan G.; Chang G.; McWilliams S.; Revelas G.; Fringer O.; Monismith S.
发表日期	2021
ISSN	21699275
卷号	126 期号:2
英文摘要	We conducted field work on the shoals of South San Francisco Bay to elucidate the mechanisms driving cohesive sediment erosion in a shallow, wave- and current-driven flow. Compiling data from three deployments, including measurements taken within the combined wave-current boundary layer, we found that wave shear stress was strongly correlated to turbulent sediment fluxes across all seasons and a range of deployment depths. Tidal turbulence was only correlated to turbulent sediment fluxes for larger relative depths, or when a wave-driven sediment flux in the bottom boundary layer allowed the tidal shear stress to transport sediment into the overlying flow. Despite the dominance of waves in eroding sediment, we found favorable agreement between in situ boundary layer erosion measurements and laboratory erosion measurements conducted in a steady flume. Results were analyzed in the context of two benthic surveys which provided insight into the sediment bed properties. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	Cohesive sediment; erosion; wave boundary layer; wave-current interaction
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186482
作者单位	Department of Civil and Environmental Engineering, Stanford University, Stanford, CA, United States; Integral Consulting Inc., Santa Cruz, CA, United States; Integral Consulting Inc., Olympia, WA, United States
推荐引用方式 GB/T 7714	Egan G.,Chang G.,McWilliams S.,et al. Cohesive Sediment Erosion in a Combined Wave-Current Boundary Layer[J],2021,126(2).
APA	Egan G.,Chang G.,McWilliams S.,Revelas G.,Fringer O.,&Monismith S..(2021).Cohesive Sediment Erosion in a Combined Wave-Current Boundary Layer.Journal of Geophysical Research: Oceans,126(2).
MLA	Egan G.,et al."Cohesive Sediment Erosion in a Combined Wave-Current Boundary Layer".Journal of Geophysical Research: Oceans 126.2(2021).