Telegraphic equation

From Glossary of Meteorology



telegraphic equation

(Also called telegrapher's equation.) A partial differential equation usually written in the form
ams2001glos-Te8
where t is a time coordinate, x is a space coordinate, and a and b are positive constants.

This is the equation governing the flow of electricity in a cable. When b < 0, the equation applies to the motion of long gravitational waves in a rotating ocean.