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Ali, W. (author)Deep-sea mining Industry and academia are presently investigating the potential of deep-seamining for valuable resources such as poly-metallic nodules. Nevertheless, the process of manoeuvring, excavating, and processing these resources poses a threat to the deep-sea environment through the generation of plumes of suspended fine-grained solids,...doctoral thesis 2024
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Alhaddad, S.M.S. (author), Elerian, M.F.A.I. (author)Turbidity currents have extensively been explored in quiescent environments. However, during several underwater activities (e.g., dredging and deep sea mining), generated turbidity currents could travel in opposite directions and interact with each other, which could largely influence their hydrodynamics and sediment transport capacity....journal article 2024
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Alhaddad, S.M.S. (author), Keetels, G.H. (author), Mastbergen, Dick (author), van Rhee, C. (author), Lee, Cheng-Hsien (author), Montellà, Eduard Puig (author), Chauchat, Julien (author)This article presents the current state-of-the-art understanding of underwater dilative slope failure (breaching). Experimental investigations are reviewed, providing critical insights into the underlying physics of breaching and pointing out knowledge gaps, which underscore the need for further research. Besides, field observations at several...review 2024
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Elerian, M.F.A.I. (author)The depletion of terrestrial mineral deposits and the increasing demand for minerals are causing disruptions in the global supply chain. The shift towards renewable technologies requires significant quantities of metals used, for example, in the production of electric vehicles and wind turbines, putting additional strain on the supply chain. The...doctoral thesis 2023
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Elerian, M.F.A.I. (author), Bedón Vásquez, A.A. (author), Enthoven, D.H.B. (author), Helmons, R.L.J. (author), van Rhee, C. (author)Renewable energy installations and energy storage solutions require a significant amount of critical raw materials such as nickel, cobalt and rare earth elements. The supply chains of these raw materials face many challenges, e.g., these materials are often found at lower grades on land. These complications motivate the search for new resources....conference paper 2022
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Cheng, H. Q. (author), Chen, W. (author), Li, J. F. (author), Jiang, Y. H. (author), Hu, X. (author), Zhang, X. L. (author), Zhou, F. N. (author), Hu, F. X. (author), Stive, M.J.F. (author)The estuarine turbidity maximum (ETM) in the Yangtze Estuary Delta (YED) is muddy by definition and lacks bottom undulations. However, since 2013, a remarkable change has occurred in the YED. Recent images detected by a multibeam echosounder system, SeaBat 7125, for the first time have confirmed widespread regions of subaqueous dunes in the...journal article 2022
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Wang, Jinyang (author), Dijkstra, Y.M. (author), de Swart, Huib E. (author)An estuarine turbidity maximum (ETM) results from various subtidal sediment transport mechanisms related to, e.g., river, tides, and density gradients, which have been extensively analysed in single-channel estuaries. However, ETMs have also been found in estuaries composed of multiple interconnected tidal channels, where the water and...journal article 2022
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Zhu, C. (author), van Maren, D.S. (author), Guo, Leicheng (author), Lin, J. (author), He, Qing (author), Wang, Zhengbing (author)The mechanisms controlling the formation of an estuarine turbidity maximum (ETM) in estuaries have been extensively investigated, but one aspect that has received much less scientific attention is the role of high suspended sediment concentrations in combination with tidal asymmetry in ETM formation. Particularly in highly turbid estuaries,...journal article 2022
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Elerian, M.F.A.I. (author), van Rhee, C. (author), Helmons, R.L.J. (author)Renewable energy installations and energy storage solutions require significant quantities of critical raw materials such as nickel, cobalt and rare earth metals. The supply chains of these raw materials face many difficulties, such as the continuous decrease of mineral ore grades on land. In view of these complications, the motivation to...journal article 2022
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Zhu, C. (author)Estuarine sediment dynamics involves estuarine hydrodynamics, sediment transport, and morphology, and strongly influence ecosystem dynamics and sustainability. In the current geological epoch, referred to as the Anthropocene, human activities are exerting increasing impacts on the environment on all scales, changing hydrodynamics, sediment...doctoral thesis 2021
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Alhaddad, S.M.S. (author)Underwater slope failure is a common problem in the fields of geotechnical, dredging and hydraulic engineering, posing a major risk to submerged infrastructure and flood defences along coasts, rivers, and lakes. The term ‘flow slide’ refers to a specific, complex failure mechanism of underwater slopes, which occurs when a substantial amount of...doctoral thesis 2021
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- Buffon, P. (author), Valero, Daniel (author), Uijttewaal, W.S.J. (author), Franca, M.J. (author) abstract 2021
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Chen, Ye (author), Parsons, Daniel R. (author), Simmons, Stephen M. (author), Williams, Rebecca (author), Cartigny, Matthieu J.B. (author), Hughes Clarke, John E. (author), Stacey, Cooper D. (author), Hage, Sophie (author), Azpiroz Zabala, M. (author)Submarine channels deliver globally important volumes of sediments, nutrients, contaminants and organic carbon into the deep sea. Knickpoints are significant topographic features found within numerous submarine channels, which most likely play an important role in channel evolution and the behaviour of the submarine sediment-laden flows ...journal article 2021
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Zhu, C. (author), van Maren, D.S. (author), Guo, Leicheng (author), Lin, J. (author), He, Qing (author), Wang, Zhengbing (author)An estuarine turbidity maximum (ETM) is a region of elevated suspended sediment concentration (SSC) resulting from residual transport mechanisms driven by river flow, tides, and salinity-induced density gradients (SalDG). However, in energetic and highly turbid environments such as the Yangtze Estuary, SedDG may also substantially contribute...journal article 2021
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Lin, J. (author), van Prooijen, Bram (author), Guo, Leicheng (author), Zhu, C. (author), He, Qing (author), Wang, Zhengbing (author)Channel deepening often triggers positive feedback between tidal deformation, sediment import and drag reduction, which leads to the regime shift in estuaries from low-turbid to hyper-turbid state. In this study, a transition in profiles of suspended sediment concentration (SSC) is hypothesised by including a positive feedback loop of...journal article 2021
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Elerian, M.F.A.I. (author), Alhaddad, S.M.S. (author), Helmons, R.L.J. (author), van Rhee, C. (author)The interest in polymetallic nodule mining has considerably increased in the last few decades. This has been largely driven by population growth and the need to move towards a green future, which requires strategic raw materials. Deep-Sea Mining (DSM) is a potential source of such key materials. While harvesting the ore from the deep sea by a...journal article 2021
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Empinotti, T. (author)Deep-water siliciclastic systems are of great societal relevance as their deposits<br/>in subsurface store hundreds of billions of barrels of hydrocarbons in different sedimentary basins worldwide. The sediment density flows that form these systems, termed turbidity currents, are capable of destroying subsea installations, such as...doctoral thesis 2020
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Weij, D. (author)Breaching is an important production mechanism for stationary suction dredgers. It is a process occurring in submerged sandy slopes, which mostly occurs in dense sandy soils with a low permeability. The process is initiated by the formation of a slope under water, whose angle is steeper than the internal friction angle, called the breach face....doctoral thesis 2020
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Alhaddad, S.M.S. (author), de Wit, Lynyrd (author), Labeur, R.J. (author), Uijttewaal, W.S.J. (author)Breaching flow slides result in a turbidity current running over and directly interacting with the eroding, submarine slope surface, thereby promoting further sediment erosion. The investigation and understanding of this current are crucial, as it is the main parameter influencing the failure evolution and fate of sediment during the breaching...journal article 2020
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Alhaddad, S.M.S. (author), Labeur, R.J. (author), Uijttewaal, W.S.J. (author)Breaching flow slides are accompanied by the generation of turbidity currents. Measurements of these currents are critical for understanding the interaction between the turbidity current and the slope surface, as well as for the validation of numerical models. However, there are insufficient data available detailing the velocity distribution or...journal article 2020