Hello, I'm an expert in the field of oceanography, and I'd be happy to explain what causes waves. Waves are formed by the transfer of wind energy to the surface of the water. When the wind blows across the water, it creates friction between the air and the water, which causes the water to move in a circular motion known as a wave. The size of the waves depends on several factors, including the strength of the wind, the duration of the wind over the water's surface, and the distance over which the wind blows, which is often referred to as the fetch. Additionally, waves can also be generated by other means such as earthquakes or volcanic eruptions under the sea, which can cause a phenomenon known as a tsunami. read more >>

Waves located on the ocean's surface are commonly caused by wind transferring its energy to the water, and big waves, or swells, can travel over long distances. A wave's size depends on wind speed, wind duration, and the area over which the wind is blowing (the fetch).read more >>