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A rogue wave at the shore is sometimes called a sneaker wave. [2] In oceanography, rogue waves are more precisely defined as waves whose height is more than twice the significant wave height (H s or SWH), which is itself defined as the mean of the largest third of
In modern oceanography, rogue waves are defined not as the biggest possible waves at sea, but instead as extreme sized waves for a given sea state. Many of these encounters are only reported in the media, and are not examples of open ocean rogue waves. Often a huge wave is loosely and incorrectly denoted as a rogue wave.
An enormous, 58-foot-tall swell that crashed in the waters off British Columbia, Canada, in November 2020 has been confirmed as the largest "rogue" wave ever Once dismissed as mythical, a 60-foot ...
Significant wave height H 1/3, or H s or H sig, as determined in the time domain, directly from the time series of the surface elevation, is defined as the average height of that one-third of the N measured waves having the greatest heights: [5] / = = where H m represents the individual wave heights, sorted into descending order of height as m increases from 1 to N.
A rogue wave with a high, steep face and deep trough can form and affect shipping traffic or shorelines nearby. Laurent Cherubin "It's unlikely for us (in Eastern Florida), but if three swells ...
The south-east coast of South Africa is on the main shipping route between the Middle-East and Europe/the U.S. and even large ships have sustained major damage because of rogue waves in the area where these waves occasionally can reach a height of more than 30 m (98 ft). Some 30 larger ships were severely damaged or sunk by rogue waves along ...
Larry Smith, a meteorologist at the NWS office in Monterey, California, said in 2013, "Though the terms 'sneaker' and 'rogue' wave are often used interchangeably in media reports, ...
Wave–current interaction is also one of the possible mechanisms for the occurrence of rogue waves, such as in the Agulhas Current. When a wave group encounters an opposing current, the waves in the group may pile up on top of each other which will propagate into a rogue wave.