Abstract
"Rogue waves", "freak waves", "killer waves" and similar names have appeared as the topic of several recent publications related to giant single waves appearing in the ocean "from nowhere". Hitherto, we do not have a complete understanding of this phenomenon due to the difficult and risky observational conditions. It is difficult to explain the high amplitudes that can occur in the open ocean using linear theories based on superposition principles. Nonlinear theories of ocean waves are more likely than linear theories to explain why the waves can "appear from nowhere". The reason for the phenomenon can lie in the instability of a certain class of initial conditions that tend to grow exponentially and hence have the possibility of increasing up to very high amplitudes.
© 2009 IEEE
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