CGRG Bibliography of Canadian Geomorphology
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Author : Hamdi, S.; and Gharbi, S.
Date : 2004.
Title : Numerical study of the influence of the length of large containerships on vessel generated hydrodynamics and their associated bank erosion in the St. Lawrence River.
Publication : 11th Annual International Conference on the St. Lawrence River Ecosystem. "Managing our Waters: Great Lakes / St. Lawrence River Ecosystem". NAVCANADA Conference Centre, Cornwall, Ontario. May 18-19th, 2004.
Issue :
Page(s) : 11-12.
Abstract
Climate changes during the last decades have caused variation of water levels and affected the erosion processes in the St. Lawrence River. High water levels and increased traffic of larger containerships allow the propagation of vessel wakes and wash waves closer to the shore which have adverse effects on bank recession. In this study, we use numerical modeling tools developed for the Canadian Coast Guard to better understand the hydrodynamics and the various driving mechanisms for the erosion process and to estimate the amount of ship generated erosion. Particularly, we present several scenarios of numerical simulations of ship wakes and drawdown to investigate the effect of longer vessels and assess their impact on bank erosion at a critical site on the St. Lawrence river. For each simulation, the wave field along the riverbanks is analyzed. The influence of length of large ships is assessed by comparing different case studies. The potential for bank erosion and recession is assessed in terms of the wave energy and radiation stress incident to the shoreline, which is computed from the ship-generated hydrodynamics in each simulation.
Bibliography of Canadian Geomorphology