Zero-crossing period significant wave height

1. What is zero crossing period?
2. What is significant height of a wave?
3. What is maximum significant wave height?
4. How do you measure significant wave height?

What is zero crossing period?

In electronics. In alternating current, the zero-crossing is the instantaneous point at which there is no voltage present. In a sine wave or other simple waveform, this normally occurs twice during each cycle. It is a device for detecting the point where the voltage crosses zero in either direction.

What is significant height of a wave?

Commonly referred to as Seas in the Marine Forecast. This is the average of the highest one-third (33%) of waves (measured from trough to crest) that occur in a given period. This is measured because the larger waves are usually more significant than the smaller waves.

What is maximum significant wave height?

The maximum ever measured wave height from a satellite is 20.1m during a North Atlantic storm in 2011.

How do you measure significant wave height?

Significant wave height, WVHT, is approximately equal to the average of the highest one-third of the waves, as measured from the trough to the crest of the waves.