What are square waves, the strange phenomenon in the sea that is very dangerous according to science
Many people who visit the sea take advantage of the opportunity to enjoy the waves. However, experts recommend being careful when they take the form of a perfect grid.
This is a phenomenon called ' square waves ', 'cross sea', 'two-sided sea' or 'cross sea', which can be extremely dangerous. According to 'SurferToday', a website specialising in surfing news, this happens when there is an intersection between two seas.
"A weather pattern in the region causes waves to form at different angles. When two opposing swells collide, a unique pattern emerges," he explains.
While it can be very beautiful from above, it is risky and it is recommended not to enter the sea. Below the perfect grid, which can be seen as a chessboard, there are strong currents that not even the most professional swimmers could overcome.
Square waves can form quickly and reach a height of up to three metres, as they are usually associated with strong, localised tides.
This phenomenon has been responsible for several maritime accidents . When waves meet at oblique angles, cross seas arise which can interfere with shipping routes and increase the risk of collisions.
According to the European Space Agency (ESA), these conditions were responsible for a high percentage of boat accidents between 1995 and 1999.
Where do square waves usually occur? According to 'Travel + Leisure', scientists can predict where square waves will appear using the Kadomtsev-Petviashvili equation.
They are also frequently seen on the Île de Ré , a small island off the west coast of France. This tourist destination is located in a location where different weather systems intersect at right angles, creating this phenomenon.
To appreciate the phenomenon of square waves, it is recommended to observe them from the coast or a cliff, since, as explained above, they are usually linked to adverse weather conditions.
It's said a 'cross or square sea' is a sea state of wind generated ocean waves that form non parallel wave systems 🤔Or, could this be generated by frequency? The earth's or someone else? Frequencies and sound can form all kinds of blanket patterns, like the sand ones last pic... pic.twitter.com/jTMVnI0DlU
— WhatdoIknow (@Earstohearyou) December 27, 2022
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