This Special Issue brings together recent advances in understanding and managing the geological and hydrodynamic environments that shape estuarine, coastal, offshore, and deep-sea engineering. As marine resource development expands and projects such as offshore wind farms and deep-sea mineral extraction move into more complex settings, reliable characterization of seabed conditions, fluid processes, and related hazards has become essential for safe design, construction, and long-term operation. This Reprint will present a curated collection of published articles addressing the coupled behavior of flows, sediments, soils, and seabed morphology, and the ways these interactions influence geological environments and engineering performance. Topics include hydrodynamics and fluid environments, engineering geology and geotechnical responses, seabed and slope stability, sediment transport and scour, seabed deformation, as well as the assessment and mitigation of geological hazards relevant to marine infrastructure. The contributions reflect a wide range of approaches, including in situ observations, laboratory testing, numerical modeling, and theoretical analysis, alongside emerging data driven and AI-based methods that support prediction, monitoring, and risk evaluation. Together, the articles provide an up-to-date reference for researchers and practitioners working on offshore and coastal systems, highlighting current challenges and practical insights for hazard assessment and resilient marine engineering.
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Engineering Science Science & Math Science & Scientists Science & Technology Technology