Simple harmonic wave

From Glossary of Meteorology

simple harmonic wave

An oscillation translating with constant speed and amplitude, and represented mathematically by a trigonometric or complex exponential function.

represents a simple harmonic wave of amplitude A, wavelength λ, frequency ν, and phase angle φ. In ocean wave studies, a simple harmonic progressive wave is an idealized wave characterized by constant speed of propagation and a straight crest of indefinite length.
See also wavenumber, phase speed.

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