CGRG Bibliography of Canadian Geomorphology
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Author : Dawson, J.C.; Davidson-Arnott, R.; and Ollerhead, J.
Date : 2001.
Title : Morphodynamics of an intertidal sand bar system, Northumberland Strait, Nova Scotia.
Publication : Coastal Science and Engineering, challenge for the new Millennium. 2001 Canadian Coastal Conference. May 16-19 2001. Universite Laval. Pavillon La Laurentienne, Quebec, QC.
Issue :
Page(s) :
Abstract
An experiment was designed to study the dynamics of an intertidal sand bar system on the Northumberland Strait, Nova Scotia. The study area is a microtidal environment characterized by a gently sloping nearshore coastal shelf and a high sediment supply. The experiment was conducted over the period of two months in May and June 2000. Measurements of wave transformation, nearshore currents, and sediment transport were made over the course of individual tidal cycles in order to examine how these variables change with water depth over the bar system and the resultant effect on sediment transport and bar form. The measurements were repeated to encompass a variety of incident wave conditions, including storm and swell waves. The entire bar system was surveyed repeatedly throughout the experiment. Additionally, a grid system of depth of disturbance rods was used to monitor changes in bed elevation over individual tidal cycles and the experiment period. Data analysis will focus on the effect of water depth and incident wave conditions on the morphodynamics of the bar system. Links will be made to measured changes in the bar form and position.
Bibliography of Canadian Geomorphology