Rogue waves (also known as freak waves, monster waves, killer waves, extreme waves, and abnormal waves) are relatively large and spontaneous ocean surface waves that occur far out at sea, and are a threat even to large ships and ocean liners.
In oceanography, they are more precisely defined as waves whose height is more than twice the significant wave height (SWH), which is itself defined as the mean of the largest third of waves in a wave record. Therefore rogue waves are not necessarily the biggest waves found at sea; they are, rather, surprisingly large waves for a given sea state. Rogue waves seem not to have a single distinct cause, but occur where physical factors such as high winds and strong currents cause waves to merge to create a single exceptionally large wave.
Famous quotes containing the words rogue and/or wave:
“I shall not cease to bless because
I lay about me with the taws
That night and morning I may thrash
Greek Alexander from my flesh,
Augustus Caesar, and after these
That great rogue Alcibiades.”
—William Butler Yeats (18651939)
“The wave of evil washes all our institutions alike.”
—Ralph Waldo Emerson (18031882)