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Coastal erosion is the loss or displacement of land, or the long-term removal of sediment and rocks along the coastline due to the action of waves, currents, tides, wind-driven water, waterborne ice, or other impacts of storms.
In a coastal example, erosion is a process that happens naturally on the Canterbury Bight as a part of the coastal geomorphology of the area and strong long shore currents. [3] [4] This process becomes a hazard when humans interact with that coastal environment by developing it and creating value in that area.
Coastal flooding during Hurricane Lili in 2002 on Louisiana Highway 1 (United States). Coastal flooding occurs when dry and low-lying land is submerged by seawater. [1] The range of a coastal flooding is a result of the elevation of floodwater that penetrates the inland which is controlled by the topography of the coastal land exposed to flooding.
Alongside rising sea levels, coastal erosion on Oahu is exacerbated by a common beach management practice. As seen on the ends of Waikiki, the ocean has swallowed up the beach. No sand, just water ...
Land loss is the term typically used to refer to the conversion of coastal land to open water by natural processes and human activities. The term land loss includes coastal erosion . It is a much broader term than coastal erosion because land loss also includes land converted to open water around the edges of estuaries and interior bays and ...
Coastal erosion at the palm-fringed tourist haven of Assinie is classified as of particular concern due to the high rate of beach loss at a resort that is an important economic hub, according to ...
A benign environment increases the interval between nourishment projects, reducing costs. Conversely, high erosion rates may render nourishment financially impractical. [14] [15] In many coastal areas, the economic impacts of a wide beach can be substantial. Since 1923, the U.S. has spent $9 billion to rebuild beaches. [16]
Examples from erosion include: Koge Bay (Dk), Western Scheldt estuary (Nl), Chatelaillon (Fr) and Ebro delta (Sp). [6] There is an obvious downside to this strategy. Coastal erosion is already widespread, and there are many coasts where exceptional high tides or storm surges result in encroachment on the shore, impinging on human activity.