Seiches, low-frequency water oscillations, can cause beach erosion along the eastern Lake Erie shoreline. A study used computer models to show that seiching motions contribute to about 1.5% of the erosion along a 2-km stretch of the shoreline. The researchers simulated the lake's hydrodynamics and nearshore morphological changes under actual water levels and seiche-free conditions to understand the impact of seiches on beach morphodynamics.