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Hydro-Morphodynamics of Coastal Areas
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Hydro-Morphodynamics of Coastal Areas

A special issue of Journal of Marine Science and Engineering (ISSN 2077-1312). This special issue belongs to the section "Physical Oceanography".

Deadline for manuscript submissions: closed (20 July 2020) | Viewed by 10455

Special Issue Editors

Dr. Rosaria E. Musumeci

E-Mail Website
Guest Editor
Department of Civil Engineering and Architecture (DICAR), University of Catania, Catania, Italy
Interests: coastal engineering; fluid mechanics; physical oceanography; hydraulic engineering; sediment transport; physical modelling; risk assessment; climate change; nature-based-solutions
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Pietro Scandura

E-Mail Website
Guest Editor
Department of Civil Engineering and Architecture, University of Catania, Via Santa Sofia 64, 95123 Catania, CT, Italy
Interests: hydrodynamics under breaking waves; interaction of sea waves with coastal structures; oscillating water column wave energy converters; coastal morphodynamics; turbulent boundary layers; turbulence modeling; wave boundary layer

Special Issue Information

Dear Colleagues,

Most of the energy carried by sea waves is dissipated in nearshore regions through complex hydrodynamic phenomena that affect the beach morphology over time scales ranging from days to years. Many cities and economic activities are located along the coasts, thus increasing the exposure of people and important assets to coastal risks.  

For many years, the scientific community has felt that an improved understanding of the coastal hydro-morphodynamics was necessary to deal with coastal processes. Nowadays these need is felt even more strongly because of the exacerbation of the impacts of climate change, such as an increase in both sea levels and the frequency and intensity of storms.

The purpose of this Special Issue is to collect original research articles on recent advances in coastal hydro-morphodynamics and to provide suggestions about the most interesting future development of coastal research.

Potential subjects for manuscript submission include but are not strictly limited to: wave breaking, bottom boundary layers, wave–current interactions, transport of non-cohesive and cohesive sediments, mixed sediments, beach morphodynamics, interaction of flow with vegetation, new instrumentations for both laboratory and field experiments, and advanced numerical modelling approaches. Studies based on the theoretical, field, experimental or numerical approaches are equally welcome.

Dr. Rosaria Musumeci
Prof. Dr. Pietro Scandura
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Journal of Marine Science and Engineering is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • wave breaking
  • boundary layers
  • wave-current interaction
  • beach morphodynamics
  • sediment transport
  • vegetation
  • numerical models
  • instrumentation

Published Papers (4 papers)

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Research

22 pages, 2112 KiB  
Article
Shoaling Waves Interacting with an Orthogonal Current
by Massimiliano Marino, Carla Faraci and Rosaria Ester Musumeci
J. Mar. Sci. Eng. 2020, 8(4), 281; https://doi.org/10.3390/jmse8040281 - 14 Apr 2020
Cited by 8 | Viewed by 2325
Abstract
In the present work, an experimental investigation on the hydrodynamics of shoaling waves superposed on a steady orthogonal current is carried out. An experimental campaign in a wave tank has been performed, with waves and current interacting at a right angle over a [...] Read more.
In the present work, an experimental investigation on the hydrodynamics of shoaling waves superposed on a steady orthogonal current is carried out. An experimental campaign in a wave tank has been performed, with waves and current interacting at a right angle over a sloping planar beach. Velocity data have been gathered during the experiments in order to investigate mean, phase and turbulent flow. A detailed preliminary analysis of the time- and space-variability of the experiments is presented. Results show that a complex interaction between waves and current occurs as the wave shoals, in terms of sheer production, momentum transfer and turbulent mixing. Superposition of waves determines a shear increase at the bottom due to an enhanced turbulence mixing, nonetheless as depth decreases and the current velocity consequently increases, shoaling waves may be less efficient in enhancing shear at the bottom. Moreover, the superposition of waves determines the current to oscillate around its mean velocity value. Nevertheless, as wave shoals and simultaneously current velocity increases with decreasing depth, waves and current oscillatory motion experience a phase lag, as a response of the larger momentum of the current to the changing of the shoaling waves acceleration distribution along the wave phase. Moreover, the turbulent bursting events of the combined flow in proximity of the bed have been investigated by means of quadrant analysis, showing an increase of the turbulent ejections and sweeps due to the superposition of the shoaling waves. Full article
(This article belongs to the Special Issue Hydro-Morphodynamics of Coastal Areas)
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11 pages, 506 KiB  
Article
Steady Streaming Induced by Asymmetric Oscillatory Flows over a Rippled Bed
by Pietro Scandura, Carla Faraci and Paolo Blondeaux
J. Mar. Sci. Eng. 2020, 8(2), 142; https://doi.org/10.3390/jmse8020142 - 20 Feb 2020
Cited by 3 | Viewed by 1960
Abstract
The flow induced by progressive water waves propagating over a rippled bed is reproduced by means of the numerical solution of momentum and continuity equations to gain insights on the steady streaming induced in the bottom boundary layer. When the pressure gradient that [...] Read more.
The flow induced by progressive water waves propagating over a rippled bed is reproduced by means of the numerical solution of momentum and continuity equations to gain insights on the steady streaming induced in the bottom boundary layer. When the pressure gradient that drives the flow is given by the sum of two harmonic components an offshore steady streaming is generated within the boundary layer which persists in the irrotational region. This steady streaming depends on the Reynolds number and on the geometrical characteristics of the ripples. Nothwithstanding the presence of a steady velocity component, the time-average of the force on the ripples vanishes. Full article
(This article belongs to the Special Issue Hydro-Morphodynamics of Coastal Areas)
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23 pages, 26914 KiB  
Article
Intratidal and Subtidal Circulation in a Tropical Estuary during Wet Season: The Maroni, French Guiana
by Lauren Ross, Aldo Sottolichio, Tanguy Maury, Sandric Lesourd and Antoine Gardel
J. Mar. Sci. Eng. 2019, 7(12), 433; https://doi.org/10.3390/jmse7120433 - 28 Nov 2019
Cited by 5 | Viewed by 2602
Abstract
Observations of water level, current velocity, river discharge, wind and salinity were collected in the Maroni estuary, on the border of French Guiana and Suriname during the wet season of 2018 to explore subtidal circulation patterns. Measurements are complimented by the application of [...] Read more.
Observations of water level, current velocity, river discharge, wind and salinity were collected in the Maroni estuary, on the border of French Guiana and Suriname during the wet season of 2018 to explore subtidal circulation patterns. Measurements are complimented by the application of analytical models with an aim to diagnose forcing mechanisms responsible for producing subtidal flows during the day of data collection and to extrapolate these findings to other time periods with variable wind and river forcing. Subtidal along-channel flows were found to be dominated by river discharge, with seaward directed velocities found throughout the channel section reaching 40 cm s − 1 . This pattern was altered with strong southwesterly winds, which produced and inverse gravitational circulation pattern despite the elevated river discharge. Secondary, or cross-channel flows, displayed a three-layer vertical structure in the main channel due to a combination of channel curvature and tidal asymmetry in the lateral baroclinic pressure gradient. The pressure gradient was produced by a salinity intrusion front that only manifested in the channel during flood tide. This is the first comprehensive study of tidal and subtidal flow dynamics in the Maroni estuary. Full article
(This article belongs to the Special Issue Hydro-Morphodynamics of Coastal Areas)
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19 pages, 10350 KiB  
Article
Impact of Anthropogenic Facilities on the Morphodynamic Evolution of an Estuarine System: The Case of Oum Er-Rbia Estuary (Azemmour, Morocco)
by Mustapha El Jakani, Said Ettazarini, Hassan Rhinane, Mohammed Raji, Mohamed Radid and Mohamed Talbi
J. Mar. Sci. Eng. 2019, 7(8), 248; https://doi.org/10.3390/jmse7080248 - 29 Jul 2019
Cited by 4 | Viewed by 3177
Abstract
The Oum Er-Rbia estuary is located on the Atlantic littoral of Morocco. It undergoes severe clogging due to the sand deposition in its outlet. The current study examined the indicators of the morphodynamic evolution in the littoral system including the Oum Er-Rbia estuary [...] Read more.
The Oum Er-Rbia estuary is located on the Atlantic littoral of Morocco. It undergoes severe clogging due to the sand deposition in its outlet. The current study examined the indicators of the morphodynamic evolution in the littoral system including the Oum Er-Rbia estuary and the neighboring beaches over 1970–2017. The methodology adopted was based on the analysis and the interpretation of aerial photographs and Google Earth images under a GIS environment and field work. The morphodynamic evolution was discussed by taking into account the evolution of hydraulic facilities installed in the watershed area, especially the construction of dams, as well as the dredging works in the Oum Er-Rbia estuary. The results highlight the morphologic evolution estimated in terms of surface units observed in the estuary and the neighboring beaches. The evolution of the littoral system was mainly influenced by the closest dam location and by the dredging works, in addition to the regulation of the river flow by the installation of hydraulic facilities upstream. Full article
(This article belongs to the Special Issue Hydro-Morphodynamics of Coastal Areas)
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