Curvature

A group of line, surface and volume attributes that measure continuity. They are related to, but not the same as, the second derivative, or the dip of the dip.

See the separate articles on surface curvature and volume curvature.

Line curvature
Curvature is easiest to understand on one dimensional (line) data, such as on a log or a horizon in section.

Explanation in terms of radius of curvature...