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A beach nourishment to broaden the beach and maintain the coastline can be designed using mathematical calculation models or on the basis of beach measurements. In the Netherlands, Belgium and Germany, a nourishment design is mainly based on measurement, while mathematical models are mainly used elsewhere.
The sand engine or sand motor (Dutch: zandmotor) is a type of beach nourishment where a large volume of sediment is added to a coast. The natural forces of wind , waves and tides then distribute the sand along the coast over many years, preventing the need for repetitive beach nourishment.
Beach nourishment is the importing and deposition of sand or other sediments in an effort to restore a beach that has been damaged by erosion. Beach nourishment often involves excavation of sediments from riverbeds or sand quarries. This excavated sediment may be substantially different in size and appearance to the naturally occurring beach sand.
Stop the Beach Renourishment v. Florida Department of Environmental Protection, 560 U.S. 702 (2010), was a United States Supreme Court case in which the Court held that the Florida Supreme Court did not effect an unconstitutional taking of littoral property owners' rights to future accretions and to contact the water by upholding Florida's beach renourishment program.
Beach evolution, also called "beach replenishment" or "beach nourishment", it involves importing sand from elsewhere and adding it to the existing beach. The imported sand should be of a similar quality to the existing beach material so it can meld with the natural local processes and without adverse effects.
Coastal sediment supply is the transport of sediment to the beach environment by both fluvial and aeolian transport. While aeolian transport plays a role in the overall sedimentary budget for the coastal environment, it is paled in comparison to the fluvial supply which makes up 95% of sediment entering the ocean. [1]
It is usually made out of wood, concrete, or stone. In the ocean, groynes create beaches, prevent beach erosion caused by longshore drift where this is the dominant process and facilitate beach nourishment. There is also often cross-shore movement which if longer than the groyne will limit its effectiveness.
Beach profiling surveys are typically repeated at regular intervals along the coast in order to measure short-term (daily to annual) variations in shoreline position and beach volume. [37] Beach profiling is a very accurate source of information. However, measurements are generally subject to the limitations of conventional surveying techniques.