# Surface gravity wave

From Glossary of Meteorology

## surface gravity wave

In water of uniform depth in which in which phase speed

*H*, the dispersion relationship is given by squared frequency*k*is the wavenumber and*g*is the acceleration of gravity. In shallow water, when the wavelength is much larger than the fluid depth, the waves are nondispersive; the dispersion relationship is then*c*= (*gH*)^{½}. In deep water the waves have the dispersion relationship