Parametric rolling refers to a specific type of ship rolling phenomenon, primarily affecting container ships and other large vessels, caused by certain wave conditions that lead to an increasing rolling motion.How It Happens: • Wave Interaction: When a container ship encounters bow waves or stern waves at certain wave heights and periods, the ship’s natural rolling frequency coincides with the wave pattern. This can cause the vessel to roll with increasing amplitude, rather than the usual steady

Parametric rolling at OOCL Brisbane. The containership pitches at angles reaching 45 degrees, with its draft fluctuating from approximately 10.2 to 13.8 meters. | The Maritime Telegraph

Ship Motions Explained: Roll, Pitch, Yaw, Surge, Sway, and Heave