5. Detailed theory and practice of maintenance dredging of port access channels by DAMs
As an order of magnitude, dredgers in operation (some 700 to 800 vessels in service worldwide) account for around 90% of maintenance dredging volume requirements worldwide.
5.1 Sediment issues in tidal ports, particularly estuary ports
Every harbor entrance is a complex system at the interface between the continental and maritime realms. This zone is the seat of numerous exchanges whose dynamics vary greatly according to the seasons and meteorological phenomena (tidal cycles, storms), a complexity amplified in estuaries by the variable regime of rivers (low water, floods).
In general, the maritime regime predominates, with winds and storms having an influence on sediment transport and spatial dispersion in addition to the tidal influence....
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Detailed theory and practice of maintenance dredging of port access channels by DAMs
Environmental issues: impacts of dredging operations and discharges at sea
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