Sustaining the viability of a maritime recreational and industrial activity depends upon maintaining navigation channels, including depths of approach channels, and berths at marine terminals and marinas. Natural movement of sediment, as well as human activities such as dredging, are an ongoing engineering concern.
Sustaining the recreational and economic viability of maritime regions depends upon maintaining navigability of shipping channels and coastlines. Coastal erosion and shoreline change are major concerns, threatening coastal communities, public infrastructure, tourism, and fishing enterprises. EEMS helps assess the impacts of changes to shoreline and bed morphology, allowing the best solutions to be determined.
Erosion of shorelines can be a significant problem in both open and confined waters. Natural events such as rainfall and run-off, and large ships navigating restricted waterways can cause sediment resuspension. It is important to understand the processes of soil erosion and sediment transport along rivers to to identify the erosion vulnerable areas and find potential measures to reduce the environmental effects.
Dredging is commonly undertaken to provide deep enough water for vessels to transit safely into, out of, and around harbors by maintaining the depths of navigation channels and berths. Sediment can consist of different geological types and can become contaminated through the absorption of spilled chemicals and heavy metals in the waterways, creating challenges for the management of dredged material. The more contaminated the sediment is, the more limited the options for management and the costlier management becomes.
Coastal waters and estuaries, as well as dams and rivers, are environments with significant impact on the regional economic and recreation activities as well as bio-diversity. These systems have a great range of shore-ocean and river-ocean interactions. Quantitative estimates of water levels, surface velocities, and deeper circulation and mixing are needed to assess restorative projects or new infrastructure developments.