Jon Miles

Abstract

This thesis describes results of a field experiment to examine the effect of wave reflection on suspended sediment transport in front of a seawall. Two instrument rigs were set up on the beach at Teignmouth, South Devon, U.K., in June 1995. One rig (the seawall rig) was attached to a protruding section of seawall, positioning the instruments 1.2m seaward of the wall. The other rig (the beach rig) acted as a control and was positioned 135m downcoast where the seawall is set back so that conditions were those of a natural beach. At each rig high frequency measurements of wave elevation, current velocity and suspended sediment concentrations were made using pressure transducers (PTs), bi-axial electromagnetic current meters (EMCMs) and optical backscatter sensors (OBSs) respectively. Wave heights during the experiment were typically in the range 0.1

Document Type

Thesis

Publication Date

1997

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