Verification of the Profile Response Simulation Model SBEACH (Storm- induced BEAch CHange)
Abstract
Beach stabilization and coastal flood protection are major areas of concern in the field of coastal engineering. Beach erosion, accretion, and change in the offshore bottom topography occur naturally through the transport of sediment by waves and currents. Beach change is controlled by wind, waves, currents, water level, sediment characteristics and supply, and constraints on sediment movement such as those imposed by coastal structures. These controlling factors are nonlinear and have great variability in space and time. Although it is a challenging problem to predict the course of beach change, such estimations are necessary to design and maintain shore protection projects. The model SBEACH was developed using data obtained from experiments performed in large wave tanks with monochromatic waves of prototype-scale heights and periods. In this report, the capability of the model to predict berm and dune erosion is evaluated using recently acquired field data from both the US East and West coasts. Hypothetical cases are also simulated to demonstrate applicability and potential uses of the model to predict the initial adjustment of a beach fill and its response to storm action, including post-storm recovery. Two different synthetic storms are developed, corresponding to tropical (hurricane) and extratropical (northeastern) events. (jhd)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1989
- Accession Number
- ADA217905
Entities
People
- Magnus Larson
Organizations
- Lund University