Open AccessUSES FOR A CALCULATED LIMIT DEPTH TO BEACH EROSION
Author(s) -
Robert J. Hallermeier
Publication year - 1978
Publication title -
proceedings of conference on coastal engineering/proceedings of ... conference on coastal engineering
Language(s) - English
Resource type - Journals
eISSN - 2156-1028
pISSN - 0589-087X
DOI - 10.9753/icce.v16.88
Subject(s) - entrainment (biomusicology) , erosion , sediment , geology , limit (mathematics) , hydrology (agriculture) , quartz , environmental science , geotechnical engineering , geomorphology , physics , mathematics , mathematical analysis , rhythm , acoustics , paleontology
A sediment entrainment parameter is used to calculate maximum water depth for intense bed agitation by shoaling linear waves of given height and period. Calculated limit depths agree with available laboratory measurements of water depth at an erosive wave cut into slopes of quartz and other fine sediments. Ignored variables have small effects on the agreement between calculations and laboratory measurements. On natural seasonal beaches, available measurements of seaward limit to appreciable sand level changes agree with limit depths calculated for extremely high waves expected 12 hours per year. The apparent accuracy and lack of scale effect in the calculated limit depth justify several applications in field and laboratory projects.