UNCERTAINTIES IN DESIGN GUIDANCE FOR HEADLAND-BAY BEACHES

摘要

This paper critically examines three mathematical expressions for headland-bay shoreline shapes in the context of engineering design. The expressions are first reviewed, and discussion is given on sensitivities to key parameters defining the shapes, including uncertainty, problems with fitting to measurements, and selection of appropriate wave direction, recommended to be the direction of nearshore mean wave energy flux. Needs for fitting software for engineering design are also discussed.