Ocean waves usually refer to the waves generated by the wind in the ocean. It mainly includes stormy waves, swells, and coastal waves. The size of waves varies greatly under different wind speed, wind direction and terrain conditions.

Ocean waves are wave phenomenon that occurs in the ocean. With a period of 0.5 to 25 seconds, a wavelength of tens of centimeters to hundreds of meters, a general wave height of a few centimeters to 20 meters, and a wave height of more than 30 meters in rare cases.

Stormy waves refer to the fluctuation of water surface under the direct action of wind.

Swells are the waves formed after the stormy waves leave the windblown area.

Coastal waves refer to the waves that is transmitted from the stormy waves or swells in the open sea to the coast and changes the wave nature under the action of terrain.

Wave is a very complex phenomenon. The study of wave is of great significance to marine engineering construction, marine development, transportation and shipping, marine fishing and aquaculture.