Shore Processes and their Palaeoenvironmental Applications by Edward J. Anthony

By Edward J. Anthony

The final 5 years were marked by way of quick technological and analytical advancements within the learn of shore tactics and within the comprehension of shore deposits and varieties, and coastline switch over the years. those advancements have generated a substantial physique of literature in quite a lot of specialist journals, therefore illustrating the cross-disciplinary nature of shore methods and the palaeo-environmental measurement of shore switch. The justification of the publication lies in bringing jointly those advancements utilizing an target process that synthesises present advances, technical growth within the research of shorelines and shore strategies, contradictory interpretations, and strength advances utilizing future-generation advancements in innovations. The ebook presents a complete state of the art presentation of shore approaches and deposits throughout levels of wave power and tide-range environments, sediment provide and textural stipulations, sea-level switch, unheard of occasions and longer-term weather switch, in keeping with the main lately released literature within the marine sciences. The e-book insists at the nested time and spatial scales in which are inter-linked shore procedures and deposits, hence supplying a greater knowing of how shorelines switch over the years. The technique is therefore cross-disciplinary, and gap-bridging among techniques and deposits, among analytical concepts, and among timescales. The viewers is from graduate point upwards, and the ebook is meant as a entire reference resource for pros in a variety of coastal technology fields (geologists, sedimentologists, geomorphologists, oceanographers, engineers, managers, archaeologists.). * aimed toward graduates and experts attracted to coastel technological know-how* provides historical past learn, contemporary advancements and destiny tendencies* Written through a number one pupil and specialist

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4 Excursion of the estuarine turbidity maximum (ETM) zone as a function of river discharge and tidal forces in the Konkoure´ Estuary, Guinea: (a) low river discharge, (b) low river discharge plus spring tides, (c) low river discharge plus neap tides, (d) high river discharge plus spring tides, and (e) high river discharge plus neap tides. The location has been determined from a combination of low tide, £ood, high tide and ebb tide data on near-bottom SSC. Adapted from Capo et al. (2006), with permission from Elsevier.

The first part examines the supply and convergence of sediment in transit through the fluvio-marine domain, while the second looks at sediment supply from the shoreface. 2. 1). The most fundamental of these are: (1) the bathymetry and geomorphology, which change from relatively shallow-water, channelised environments landward of the coast, to deeper, unconfined settings on the shelf; (2) the source of the physical energy responsible for sediment movement, which ranges from purely river currents to tidal, wave and/or oceanic currents on the shelf; (3) the resulting frequency, rate and direction of sediment movement, which is unidirectional and continuous, to seasonal or flashy in the river, or reversing, with mutually evasive transport pathways in tidal settings, with a tendency for landwarddirected residual transport, and onshore–offshore transport on the adjacent tidedominated shoreface; and (4) the salinity of the water, which ranges from fresh, through brackish, to fully marine on the shelf (Dalrymple & Choi, 2007).

G. g. g. , 2005). Each of these methods is fraught with uncertainties and cannot be considered as conclusive. 4. Longshore Sand Redistribution on the Inner Shoreface The longshore dimension of the upper shoreface is particularly important in terms of uniform longshore flows, segregated longshore flows and their implications 48 Shore Processes and their Palaeoenvironmental Applications for sediment redistribution. The upper shoreface, and notably the surf zone, is affected by longshore sediment transport under the joint effects of sediment stirring by wave breaking and advection by wave-induced currents.

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