Perilous Waters: The 'Square Wave' Ocean Phenomenon

While the ocean's beauty is undeniable, its depths hold mysteries and dangers, capable of turning a serene seascape into a perilous trap.

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Square waves, also known as cross seas, are a rare but dangerous ocean phenomenon where two wave systems intersect at nearly perpendicular angles, creating a grid-like pattern on the water's surface.

Square-shaped waves are fascinating, reports Surfer Today but these criss-cross ripples pose a real threat to everyone and are often too strong to get out.

Bizzare Complex Pattern

Square waves form a complex wave pattern with unpredictable currents and powerful breaking waves that can reach significant heights of up to 10 feet, making it difficult for swimmers and boaters to navigate and potentially capsizing vessels or causing serious injuries to those caught in them.

Essentially, they can pull you in multiple directions at once, making escape challenging.

Square waves are undoubtedly mesmerizing, but they're not to be underestimated.” warns Mathew Giachetti of the United States Lifesaving Association, “These waves are impossible to predict, and when they're in full force, they pose a serious threat. In fact, a study from the Proceedings of the 13th International Offshore and Polar Engineering Conference revealed that a significant number of maritime accidents have been caused by square waves.” [Source: Islands.com]

Wht to do if you encounter square waves:

1. Get out of the water immediately. If you are swimming or surfing and notice the waves starting to form a square pattern, head to shore as quickly and safely as possible.
2. Don't fight the current. If you are caught in a square wave current, do not try to swim directly against it. Instead, try to swim parallel to the shore until you are out of the current's pull, then swim back to shore.
3. If you can't reach the shore, signal for help. If you are unable to swim to safety, stay calm, try to float on your back, and signal for help by waving your arms or calling for assistance.
4. Stay away from the area. If you are on a boat or near the shore, stay clear of the area where square waves are forming.

Closing Thoughts

There is a general consensus that square waves can be difficult to see from the water's surface, especially if you are not familiar with the phenomenon.

Always pay attention to changes in wave patterns and currents, and err on the side of caution if you notice anything unusual. It's better to be safe than sorry when it comes to the ocean's power.

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Sources:

• Islands.com
• The Inerta
• Wikipedia