From Glossary of Meteorology
Revision as of 17:59, 25 April 2012 by
A system of differential equations with solutions that contain a rapidly damping component (as would describe the displacement of a stiff spring when stretched and then released).
Such systems are used to describe rapid photochemical reactions that take place in the upper atmosphere. Special numerical techniques are often required to solve stiff systems in order to maintain stability of the computation.