# Conveyance

From Glossary of Meteorology

## conveyance

(Used in open channel flow.) The ratio of the discharge, Q, in a channel to the square root of the energy gradient,

*S*_{f}.In the Manning equation it can be expressed as or where where

*n*is Manning's roughness coefficient (indicative of resistance to the flow) and*A*is the cross-sectional area of the channel.