19 Terms
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Coastal engineering
A branch of civil engineering that applies engineering principles specifically to projects within the coastal zone including areas nearshore, estuary, marine, and shoreline.
Industry: Engineering
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Coastal engineering
Flood gate
Engineering; Coastal engineering
A gravity outlet fitted with vertically-hinged doors, opening if the inner water level is higher than the outer water level, so that drainage takes place during low water.
Wave period
Engineering; Coastal engineering
The time for a wave crest to traverse a distance equal to one wavelength. The time for two successive wave crests to pass a fixed point. See also significant wave period.
Diffusion
Engineering; Coastal engineering
The distributing or spreading-out of molecules, atoms, or substances into a vacuum, fluid, or porous medium so that the concentration equalises in all parts of the system
Marigram
Engineering; Coastal engineering
A graphic record of the rise and fall of the tide. The record is in the form of a curve in which time is represented by abscissas and the height of the tide by ordinates.
Salt-wedge estuary
Engineering; Coastal engineering
In this circulation type, the density-driven component dominates and two well-mixed layers are separated by a sharp halocline. The seawater entering the channel appears as a tongue or wedge.
Nearshore berm
Engineering; Coastal engineering
Artificial berm built in shallow water using dredged material. Often, the berm is intended to renourish the adjacent and downdrift shore over time under the influence of waves and currents.
Echo sounder
Engineering; Coastal engineering
An electronic instrument used to determine the depth of water by measuring the time interval between the emission of a sonic or ultrasonic signal and the return of its echo from the bottom.
