Special Issue "Coastal Sediment and Its Management"

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Oceans and Coastal Zones".

Deadline for manuscript submissions: closed (31 May 2023) | Viewed by 1111

Special Issue Editors

Departmento Oceanografia, Federal University of Espirito Santo, Vitória, Brazil
Interests: marine sedimentology; marine stratigraphy; benthic habitats; seabed mapping
Departmento Oceanografia, Federal University of Espirito Santo, Vitória, Brazil
Interests: sedimentology; marine sedimentation; estuaries; sediment dynamics

Special Issue Information

Dear Colleagues,

Sediment management of coastal regions and their surroundings involves understanding the source, spatial and temporal variations in sediment input rates, sediment composition, biogeochemical processes, and sedimentary physical processes, including dispersion, deposition, and resuspension. The challenge that involves coastal sediment management is directly related to anthropogenic changes along the sediment route system (river–estuary–coast) and along the coast. Dam construction, deforestation, and urbanization are examples of human interventions along the watershed, while ports, offshore wind farms, beach nourishment, coastal reclamation, and sewages/outflows are among human coastal interventions. Understanding spatial and temporal sediment dynamic patterns is crucial for any coastal engineering project, monitoring or mitigation program in order to avoid associated social, economic, and environmental impacts.

The different sedimentary and physical processes that occur in these areas will determine the type of use or the economic and environmental conflict that an intervention may cause. Thus, sediment transport, deposition, resuspension, and dispersion must be considered as part of coastal and marine spatial management. This Special Issue will focus on the relationship between coastal and inner continental shelf sediment dynamics and marine spatial management. Papers presenting studies related to this discussion are welcome, including numerical modeling, artificial intelligence analysis in sediment dispersion patterns, settling/erosion laboratory experiments, new technologies for in situ measurements, proxies/tracers to define sediment dispersion, and deposition and coastal sediment case studies.  

Dr. Alex Cardoso Bastos
Prof. Dr. Valéria Da Silva Quaresma
Guest Editors

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  • sediment dynamics
  • marine spatial planning
  • marine environmental management
  • erosion and silting processes
  • structural environmental impact

Published Papers (1 paper)

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Extreme Hydrometeorological Conditions of Sediment Waves’ Formation and Migration in Peter the Great Bay (The Sea of Japan)
Water 2023, 15(3), 393; https://doi.org/10.3390/w15030393 - 18 Jan 2023
Cited by 1 | Viewed by 906
New data were obtained on the formation mechanisms of relief sediment waves (SWs) in Peter the Great Bay of the Sea of Japan. From the studies, we can assume that the sediment waves in the bay originate from two types of turbidity (TB) [...] Read more.
New data were obtained on the formation mechanisms of relief sediment waves (SWs) in Peter the Great Bay of the Sea of Japan. From the studies, we can assume that the sediment waves in the bay originate from two types of turbidity (TB) currents: (1) fine-dispersed TB currents caused by disintegrating internal waves and entrained by the Primorsky current along the shelf through SWs troughs; (2) fine- and coarse-grained TB currents, formed and entrained by the Primorsky current, intensified by the typhoons. This work presents the geological structure of the shelf area containing SWs. We established that the area of SWs location is on the border of change in facies conditions of sediment bedding in the bay. The transition from the inner shelf facies to the outer shelf facies occurs at a depth of 50–60 m. We analyzed the space variability of temperature and sound speed fields peculiar to the region on the results of hydrological CTD measurements and long-term measurements with moored vertical thermostrings. In the course of measurements, seven typhoons during their passage off the Primorye coast of the Russian Federation were registered. We found a significant change in the hydrological situation in the bay under the influence of extreme external factors. Under calm meteorological conditions, up to three mild thermoclines were observed in the bay, located at depths of 8–15 m, 30–35 m, and 45–60 m. During the passage of typhoons, they combined into one powerful thermocline at a depth of approximately 50–60 m, and in some cases, a high-gradient thermocline formed at the depths of 30–40 m (about 12–15 °C per 10 m of depth). The high-gradient layer significantly increases the amplitude and strength of internal gravity waves, thereby increasing the speed of currents in the water media. We should note that this period of transformation of the hydrological profile on the shelf under the influence of typhoons covers the period from August to October-November. We established that in the SWs location area, firstly, the process of internal waves disintegration intensifies in the autumn season, resulting in the formation of the waves with lengths close to the SWs horizontal scales (SWs wavelengths); secondly, under the influence of the typhoons entering the Sea of Japan, the kinetic energy of the shelf branch of the Primorsky current increases. In this case, it acts as a source of TB currents, including medium- and coarse-grained sedimentary material that forms SWs. Full article
(This article belongs to the Special Issue Coastal Sediment and Its Management)
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