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15 Cards in this Set

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barrier island
An elongate, offshore accumulation of sand that is above water level and is separated from the mainland by a bay or lagoon; stops large waves from reaching the shore of the mainland.
beach
Associated with an ocean or lake, an accumulation of loose material, most commonly sand, gravel, or bits of shell, on a shoreline as the result of wave action. As used by river rafters, a wide sand accumulation along a low bank of the channel.
beach budget
Inventory of sediment influx and loss along a particular stretch of coastline.
beach nourishment
Mechanical addition of sediment, generally sand, to a shore for recreational and aesthetic purposes, as well as to buffer coastal erosion.
bluff
As a landform, a high steep bank or cliff along a lakeshore or river valley commonly made of weakly consolidated earth material.
breakwater
A structure, such as a wall, which may be attached to a beach or located offshore, designed to protect a beach or harbor from the force of waves.
eustatic sea level
The worldwide average vertical position of the ocean surface.
groins
A long, narrow structure of rock, concrete, wood, or other material generally constructed perpendicular to the shore to protect the coastline and trap sediment in the zone of littoral drift.
jetties
Very long, narrow, structures of rock, concrete, or other material generally constructed perpendicular to the shore; commonly constructed in pairs at the mouth of a river or inlet to a lagoon, estuary, or bay; designed to stabilize a channel, control deposition of sediment, and deflect large waves.
littoral transport
Movement of sediment in the nearshore environment as a result of return of flow from waves that have washed up on the shore; sediment is moved by both the longshore current and by beach drift.
relative sea level
The local or regional position of the sea at the shore that is influenced by uplift or subsidence of the land and changes in global eustatic sea level.
rip current
A seaward flow of water in a confined narrow area from a beach to beyond the breaker zone.
rogue wave
A single crest of an oscillation of the surface of the ocean that is much higher than usual. Commonly caused by the constructive interference of smaller waves.
sea cliff
Steep, commonly nearly vertical bluff adjoining a beach or other coastal environment; produced by a combination of wave erosion and erosion from the land, such as landsliding and runoff of surface water. Groundwater seepage may also contribute to its development.
seawall
A structure, commonly made of concrete, large stone blocks, wood or steel pilings, or cemented sand bags, built parallel to the coastline to protect buildings and infrastructure from wave and flood damage.