Accession Number:

ADA255284

Title:

Long-Term Profile and Sediment Morphodynamics: Field Research Facility Case History

Descriptive Note:

Final rept.

Corporate Author:

COASTAL ENGINEERING RESEARCH CENTER VICKSBURG MS

Personal Author(s):

Report Date:

1992-07-01

Pagination or Media Count:

255.0

Abstract:

Surface sediment grab samples were collected along one profile line at the Field Research Facility FRF at Duck, NC, over a 17.8-month period from March 1984 to September 1985. Profile surveys were taken about every 2 weeks, with sediment samples collected approximately once a month. Extra profile and sediment samples were collected after storms. This comprehensive data set of beach profiles, sediment, and wave and weather conditions provides a unique opportunity to examine natural profile changes and resulting changes in sediment grain-size distribution along the entire length of an active profile and to test and evaluate models of beach profilesediment interactions to changing coastal processes. Spatial changes indicate that the most active part of the profile at the FRF is the bartrough area that alternately moves seaward after storms and migrates landward during fair weather wave conditions. The highest variability in sediment grain-size distributions occurred on the subaerial beach and foreshore area. Beach cross-shore sediment distributions, Long-term beach, Beach profilesediment interaction, profile change, Beach sediment modeling, Waves.

Subject Categories:

  • Hydrology, Limnology and Potamology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE