# Phase speed

From Glossary of Meteorology

## phase speed

(

*Or*wave speed;*also called*phase velocity, wave velocity.) The speed of propagation of a mathematical surface of constant phase (or phase angle) of a time-harmonic wave.

(*Or* wave speed;

*also called* phase velocity, wave velocity.) The speed of propagation of a mathematical surface of constant phase (or phase angle) of a time-harmonic wave.