Accession Number:

ADA236240

Title:

Modelling of Nearshore Sediment Transport

Descriptive Note:

Final technical rept. 1 Mar 1990-28 Feb 1991,

Corporate Author:

FLORIDA UNIV GAINESVILLE DEPT OF COASTAL AND OCEANOGRAPHIC ENGINEERING

Personal Author(s):

• Hanes, Daniel M.

Report Date:

1990-03-01

Pagination or Media Count:

56.0

Abstract:

The primary effort during the past year focussed on analysis of data obtained during a field experiment conducted at Cape Canaveral during Summer, 1987. Analysis was pursued using a new approach based upon examining the spatial and temporal characteristics of individual sand suspension events, as well as their statistical characteristics. The most interesting conclusions fell along two lines of investigation 1 the presence of wave groups enhances the suspension of sand above that which would occur with randomly distributed waves with the same height distribution and 2 the primary difference between suspension events which cause erosion and those which cause accretion relates to the phase of the wave in which the sediment is suspended off the seabed. This report included individual articles on the following topics The structure of events of intermittent suspension of sand due to shoaling waves. A laboratory evaluation of optical suspended solids sensors exposed to sand mud mixtures Acoustic measurements of suspended sand on the shoreface and the control of concentration by bed roughness and Suspension of sand due to wave groups.

Descriptors:

• *LABORATORY TESTS
• INSHORE AREAS
• FIELD TESTS
• STATISTICS
• SAND
• SOLIDS
• MIXTURES
• EROSION
• SEDIMENT TRANSPORT
• SUSPENDED SEDIMENTS
• ACOUSTIC MEASUREMENT
• SUSPENSION DEVICES
• OPTICAL DETECTORS
• SEDIMENTS
• HEIGHT
• OCEAN BOTTOM
• WAVES
• SUMMER
• DISPERSIONS
• MUD
• DISTRIBUTION

Subject Categories:

• Physical and Dynamic Oceanography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE