Spot the very dangerous square waves: how they form and why they are risky for boats and swimmers

The square waves They are a rare but fascinating marine phenomenon, recently sighted in the Aegean Sea, along the Turkish coast by some fishermen. This natural show creates a surprising visual effect, with the surface of the water that appears divided into perfectly aligned squares. However, despite their beauty, the square waves represent a serious danger Both for swimmers and for boats, due to the strong currents they generate.

How do the square waves form?

The square waves occur when two different wave systems they move in opposite directions and clash at right angle. Normally the waves spread parallel to the coast, but in the presence of particular weather conditions, the sea can be influenced by systems of waves from different directions. This happens, for example, when a storm in the distance generates an ondous motion that overlaps with the already existing one. The result is a checkered motif clearly visible on the surface of the water.

The waves that travel for long distances can meet without the direct influence of the local wind, thus creating the characteristic checkered scheme. Although the surface of the water may appear relatively calm, Forty currents develop belowmaking these waves insidious and difficult to predict.

Why are they dangerous?

The square waves create Very powerful compensation currents who can drag swimmers off the coast in a few moments. Since these currents, many swimmers find themselves in difficulty without realizing the danger. Even expert swimmers may have difficulty freeing themselves from the socket of these strong currents.

The boats, especially those of small and medium -sized, are particularly vulnerable. The waves that collide with different directions create an unstable and difficult to navigate sea, increasing the risk of accidents and reversals. Even larger ships can undergo violent rolls of roll, making navigation extremely complex.

For those who are on the beach, the main advice is not to enter the water if you notice square waves. For the boaters, however, avoiding these areas is fundamental for the safety of navigation.

Where do they happen?

The square waves have been observed in various parts of the world. One of the best known locations is The island of Raéin France, where many people go to admire the phenomenon from a security distance. Sightings also occurred off Tel Aviv and in Aegean Sea.