Characteristics of abnormally large surface waves in the ocean based on computational experiments

Anomalously large surface waves, called killer waves, are sudden single waves with an amplitude more than 2 times greater than a significant wave height. The sudden occurrence of abnormally large waves in the ocean determines the serious danger they pose to sea vessels and structures. Within the framework of the nonlinear theory, anomalously large waves were considered as a result of modulation instability.