ωκεανογραφία

(oceanography) A thick sheet of ice with a fairly level or undulating surface, formed along a polar coast and in shallow bays and inlets, fastened to the shore along one side but mostly afloat and nourished by annual accumulation of snow and by the seaward extension of land glaciers...

Περιγραφή τού rogue wave στη βικιπαίδεια (http://en.wikipedia.org/wiki/Rogue_wave): Rogue waves (also known as freak waves, monster waves, killer waves, and extreme waves) are relatively large and spontaneous ocean surface waves that are a threat even to large ships and ocean liners. In...