Search results
Results from the WOW.Com Content Network
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.
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.
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.
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]
This solution entails beach nourishment (creating recreational area by filling with sand), and further beach expansion and prevention of beach erosion caused by longshore drift and coastal development hazards. The design makes use of a shorter groyne slightly inclined toward the beach in the same direction as downdrift, with a series of ...
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.
The beach nourishment work by the Corps of Engineers is another area of controversy since the temporary replenishment of beach sand is extremely expensive and profitable. The reasons for beach nourishment are often misunderstood. USACE beach nourishment projects are authorized under Section 111 of the 1968 Rivers and Harbors Act (P.L. 90-483 as ...
Beach replenishment or Beach nourishment, a coastal-management process that artificially replaces sediments lost to erosion Collaborative planning, forecasting, and replenishment , an inventory-management scheme trademarked by the Voluntary Interindustry Commerce Standards Association