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Modelling the transport and deposition of sediment-microplastics fluxes in a braided river, using Delft3D. [PDF]
Philos Trans A Math Phys Eng SciAlvarez Barrantes L +5 more
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Subglacial bedforms—an introduction
Sedimentary Geology, 1989Abstract This introduction provides of a brief review of a set of papers based on a Special Symposium held at the XII INQUA Congress, Ottawa, 1987. Attention is also drawn to the major concepts and controversies behind the formation of subglacial bedforms and to major issues for future research.
J. Menzies, J. Rose
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Cheniers and Regressive Bedforms
2015Fil: Bedmar, José Manuel. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Geología de Costas y del Cuaternario. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto de Geología de Costas y del Cuaternario; Argentina.
Isla, Federico Ignacio +1 more
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Bedform Alignment in Directionally Varying Flows
Science, 1987Many kinds of sediment bedforms are presumed to trend either normal or parallel to the direction of sediment transport. For this reason, the trend of bedforms observed by remote sensing or by field observations is commonly used as an indicator of the direction of sediment transport.
D M, Rubin, R E, Hunter
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Bedform-velocity matrix: The estimation of bottom current velocity from bedform observations
Geology, 2009A wide variety of bedforms, both depositional and erosional in origin, has been recognized on the deep seafloor and attributed to the influence of bottom currents. These range in scale from those visible in bottom photographs (centimeter to decimeter), to those recorded with seafloor bathymetric imaging (meter to kilometer).
Stow, Dorrik A.V. +5 more
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Principles of Mechanics of Bedforms
2015Natural streambed does not exhibit a plane bed surface, but takes various geometrical forms known as bedforms. In this book chapter, the studies dealing with the formation mechanism of bedforms and their stability are discussed. The important feature of this chapter is the presentation of mathematical models proposed by various researchers.
Ferraro D., Dey S.
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Multitrack surveying of large bedforms
Geo-Marine Letters, 1988Data are presented from multitrack surveys of large, sandy bedforms in the Fraser River estuary, Canada. A detailed contour map and block diagram provide information on three-dimensional bedform geometry that could not be obtained using conventional survey methods.
R. A. Kostaschuk, G. M. MacDonald
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Bedforms steepness in alluvial streams
Journal of Hydraulic Research, 1992A study of bedforms steepness in alluvial streams during the low flow regime is reported in this paper. By means of an empirical approach two main results were found: a. The use of the dimensionless grain shear stress, τ′ adequately represents sediment transport intensity and, therefore, the observed evolution of bedform steepness.
Mario Isaac Schreider, Mario Luis Amsler
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2003
Abstract : LONG-TERM GOAL. The goal of this work is to develop a predictive understanding of coastal bedforms and their effect on the burial of objects on the seafloor. OBJECTIVES. The objective of the research is to develop a robust characterization of the growth of the bottom profile envelope (the range from minimum to maximum depth) in the nearshore,
Rob Holman, Edith L. Gallagher
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Abstract : LONG-TERM GOAL. The goal of this work is to develop a predictive understanding of coastal bedforms and their effect on the burial of objects on the seafloor. OBJECTIVES. The objective of the research is to develop a robust characterization of the growth of the bottom profile envelope (the range from minimum to maximum depth) in the nearshore,
Rob Holman, Edith L. Gallagher
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Frozen dynamics of migrating bedforms
Geology, 2005Here we show how a continuum granular flow model can replicate realistic self-organizing subaqueous bedforms, and we explore how a record of this dynamic topography is transferred into the substrate where it can be fossilized. Modeled bedform behavior is quantitatively compared to laboratory and field data. Sediment scouring and deposition by migrating
Douglas J. Jerolmack, David Mohrig
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