# Ascendent

From Glossary of Meteorology

## ascendent

The negative of the gradient.

The ascendent of a function is a vector with magnitude equal to the maximum spatial rate of change of that function at a given point at a given time. It is directed toward increasing values of the function along the line of maximum change and is represented by

**∇***F*, where*F*is the function and**∇**is the del operator.