![]() ![]() Erosion īeach erosion is a specific subset of coastal erosion, which in turn is a type of bioerosion which alters coastal geography through beach morphodynamics. ![]() The number and size of nourishment projects has increased significantly due to population growth and projected relative sea-level rise. Since then more shoreface nourishments have been carried out, which rely on the forces of the wind, waves and tides to further distribute the sand along the shore and onto the beaches and dunes. īefore the 1970s, nourishment involved directly placing sand on the beach and dunes. was constructed at Coney Island, New York in 1922–1923. The first nourishment project in the U.S. It is now a common shore protection measure used by public and private entities. The first nourishment project in the United States was at Coney Island, New York in 19. Nourishment is typically a repetitive process since it does not remove the physical forces that cause erosion but simply mitigates their effects. ![]() Beach nourishment is typically part of a larger integrated coastal zone management aimed at coastal defense. A wider beach can reduce storm damage to coastal structures by dissipating energy across the surf zone, protecting upland structures and infrastructure from storm surges, tsunamis and unusually high tides. Beach nourishment deviceīeach nourishment (also referred to as beach renourishment, beach replenishment, or sand replenishment) describes a process by which sediment, usually sand, lost through longshore drift or erosion is replaced from other sources. Beaches along the Gold Coast of Australia have been subjected to a beach nourishment project. ![]()
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