These ripples are waves travelling through the water. Like ocean waves ... so the peaks of the resulting wave are higher and the troughs are lower. If two waves meet each other out of phase ...
A few months ago the North German Lloyd liner Brandenburg came into New York harbor with her crows nest, 50 feet aboye the water ... from trough to crest of 40 to 50 feet. Much higher waves ...
A rare 22 second wave period was detected off the coast of Sydney on Tuesday morning as an energetic swell reached the NSW ...
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