amplitude

By admin_wla | Tue, 4 Feb 2014 - 12:13
The magnitude of the displacement of a wave from a mean value. For a simple harmonic wave, it is the maximum displacement from the mean. For more complex wave motion, amplitude is usually taken as one-half of the mean distance (or difference) between maxima and minima. Source: NASA (http://earthobservatory.nasa.gov/Glossary)