The language of the sea

Stephanie C.

Waves are the visible language of the sea - rhythmic, powerful and fascinating. They are created when energy is transferred to the water by wind, earthquakes or tides. Each type of wave has its own dynamics and effect on life in and around the sea.

Wind waves

The most common waves on our seas are wind waves. They are caused by the constant pressure of the wind on the surface of the water. The stronger and longer the wind blows, the larger they become. When they hit shallow water, they turn into surf waves that break into whitecaps on the shore.

Tidal waves

Tidal waves are caused by the gravitational pull of the moon and the sun. They control the change between high and low tide and shape entire coastal landscapes. Without them, maritime life on earth would be almost inconceivable.

Tsunamis

Tsunamis are caused by underwater earthquakes, volcanic eruptions or landslides. Barely visible in the open sea, they only unfold their destructive power close to the coast. There they pile up into walls of water the height of a house.

Internal waves

Internal waves are a less well-known but significant form. They run between layers of water of different densities and move deep below the surface. On satellite images, they appear as shadows in the sea - a silent dance inside the oceans.

Monster waves

The dreaded monster waves, also known as rogue waves, are a mystery of the sea. They can appear suddenly, grow up to 30 metres high and endanger even large ships. For a long time, they were considered a sailor’s yarn until their existence was scientifically proven.

The significance of waves

Waves are much more than just movement on the surface. They transport energy, oxygen and heat through the world’s oceans. Every wave is an expression of the forces that shape our planet. It reminds us that the sea never stands still.