Structure Performance and Maintenance
Swells and long waves represent serious challenges for harbors, requiring detailed study of the agitation processes to support infrastructure design. Wave gauge observations from Atlantic Canadian harbors of varying sizes were used to assess how combinations of basin dimensions and external wave forcing can leading to swell agitation, resonance, and scour problems. Basin resonances were investigated with analytical methods, then phase-resolving numerical models. The case studies illustrate how resonance mitigation may require substantial (and sometimes impractical) changes in harbor layout. Swell and scour mitigation may be more readily achieved by modifications or additions to existing structures.