Classification of Sea Waves

Classification of Sea Waves.

Waves / wave that occurred in the sea can be classified into several types depending on generator power. 

Sea wave generator can be caused by: wind (wind waves), sun-moon gravitational pull-earth (tidal waves), seismic (volcanic or tectonic) on the seabed (the tsunami), or waves caused by movement of the ship.

Waves that occur daily and taken into account in the field of coastal engineering is the wave of wind and tides (tidal).

U.S. Challenges China’s Wind Power Equipment Aid

By SEWELL CHAN, New York Times

Wind Power Equipment Aid

WASHINGTON — The Obama administration accused China on Wednesday of illegally subsidizing the production of wind power equipment and called for discussions at the World Trade Organization, the first step in a trade case sought by American steelworkers. 

It is the second time in less than four months that the administration has accused China of violating world trade rules. 

The move escalates the trade tensions between the United States and China over clean energy, a sector that the administration views as a technological frontier in which American companies are struggling to remain competitive.