气候变化领域集成服务门户(CCPortal): Optimizing measurements of sediment transport in the intertidal zone

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DOI	10.1016/j.earscirev.2019.103029
	Optimizing measurements of sediment transport in the intertidal zone
	Brand E.; Chen M.; Montreuil A.-L.
发表日期	2020
ISSN	0012-8838
卷号	200
英文摘要	The intertidal beach is very dynamic and is characterized by high sediment transport rates which may result in large topographic changes. Measuring techniques are well developed for both sediment transport and beach topography but the quantification of transport remains difficult. This paper provides an in-depth review of studies that cross-checked sediment transport measured underwater to transport derived from topographic change and/or predictive formulas to optimize future measuring campaigns in the intertidal zone. Based on these studies it is strongly recommended to measure sediment transport at multiple locations in the intertidal zone, although it is recognized that this is costly. When the suspended sediment is mixed and vertically stratified, it should be gauged over the entire water column. Acoustic backscatter intensity can be used for this purpose but needs to be corrected for grain size and turbulence. When cross-checking measured sediment transport rates with beach volume changes topographic profiles may not be sufficient. Instead, laser scanning of the beach is recommended. Additionally, valuable insights can be obtained from continuously measuring the beach topography. When beach topography is only measured during low tide, wind-driven transport should be taken into account during energetic conditions. It is deemed necessary to improve sensors to measure bed load transport and suspended sediment transport close to the bed and to further improve formulas to predict sediment transport. With the suggestions given in this paper it is encouraged to perform field investigations of sediment transport in the intertidal zone to improve our knowledge of the intertidal beach morphodynamics. © 2019 Elsevier B.V.
英文关键词	Beach topography; Field investigations; In-situ measurements; Morphodynamics; Sediment transport
语种	英语
scopus关键词	beach morphology; grain size; in situ measurement; intertidal environment; measurement method; morphodynamics; optimization; sediment transport; suspended sediment; topography
来源期刊	EARTH-SCIENCE REVIEWS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/209767
作者单位	Vrije Universiteit Brussel, Pleinlaan 2, Elsene, 1050, Belgium
推荐引用方式 GB/T 7714	Brand E.,Chen M.,Montreuil A.-L.. Optimizing measurements of sediment transport in the intertidal zone[J],2020,200.
APA	Brand E.,Chen M.,&Montreuil A.-L..(2020).Optimizing measurements of sediment transport in the intertidal zone.EARTH-SCIENCE REVIEWS,200.
MLA	Brand E.,et al."Optimizing measurements of sediment transport in the intertidal zone".EARTH-SCIENCE REVIEWS 200(2020).