There is clearly no immediate answer to the question posted by the title of this paper. Inasmuch as that there are not much definitively known about rogue waves and that there is still no universally accepted definition for rogue waves in the ocean, we think there might just be even more than one kind of rogue waves to contend with. While the conventional approach has generally designated waves with greater than 2.2 as possible rogue waves, based on Rayleigh distribution considerations, there is conspicuously no provision as to how high the ratio of can be and thus not known how high can a rogue wave be. In our analysis of wave measurements made from a gas-drilling platform in South Indian Ocean, offshore from Mossel Bay, South Africa, we found a number of cases that indicated could be valued in the range between 4 and 10. If this were to be the case, then these records could be considered to be “uncommon” rogue waves, whereas a record of in the range between 2 and 4 could be considered to comprise “typical” rogue waves. On the other hand, the spikes in the data could have been caused by equipment malfunction or some other phenomenon. Clearly, the question of whether or not there are different kinds of rogue waves cannot be readily answered by theoretical considerations alone and there is a crucial need for long-term wave time-series measurements for studying rogue waves.
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Are There Different Kinds of Rogue Waves?
Paul C. Liu,
Paul C. Liu
NOAA Great Lakes Environmental Research Laboratory
, Ann Arbor, MI, 48105
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Keith R. MacHutchon
Keith R. MacHutchon
Liebenberg & Stander International (Pty) Ltd.
, Cape Town, 8000 South Africa
Search for other works by this author on:
Paul C. Liu
NOAA Great Lakes Environmental Research Laboratory
, Ann Arbor, MI, 48105
Keith R. MacHutchon
Liebenberg & Stander International (Pty) Ltd.
, Cape Town, 8000 South AfricaJ. Offshore Mech. Arct. Eng. May 2008, 130(2): 021007 (7 pages)
Published Online: June 6, 2008
Article history
Received:
October 4, 2006
Revised:
December 19, 2007
Published:
June 6, 2008
Citation
Liu, P. C., and MacHutchon, K. R. (June 6, 2008). "Are There Different Kinds of Rogue Waves?." ASME. J. Offshore Mech. Arct. Eng. May 2008; 130(2): 021007. https://doi.org/10.1115/1.2917431
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