General Question

Brassman's avatar

How to read wave/swell buoys?

Asked by Brassman (112points) January 4th, 2010

For example, if someone says there are 3 seconds between buoy movements, what does this mean?

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4 Answers

dpworkin's avatar

It means peak-to-peak, but I don’t know the distance at which the buoys are placed, so I don’t know how to calculate the distance from the frequency.

Kayak8's avatar

With just one bouy, if it is moving every three seconds, the seas are pretty fast. The frequency would be three seconds . . . and pdworkin is right, it would be the distance between the peaks of the waves.

Brassman's avatar

Thanks! So, it indicates the time between swell pulses. Does it have anything to do with swell size? i.e. if the swell is larger, could you assume the period will be longer because the buoys are moving higher?

warribbons's avatar

@brassman you cannot assume the period will be longer due to the amplitude(swell?) , as they are independent of each other.

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