Have jagged contours on your surface? Here are a couple options to smooth them out. Find out which works best for you.
Contour Charts/Heat Maps - ChartDirector Chart Gallery
DEM Civil 3D Plus
Contour Smoothing vs. Surface Smoothing
PDF] Computing smooth surface contours with accurate topology
CNC Machining, Tolerance settings for surface finishing in Fusion 360??
Surface Charts - ChartDirector Chart Gallery
topoBuilder Infographic Smoothing Options
Contour Smoothing vs. Surface Smoothing
Contour Smoothing vs. Surface Smoothing
DSM shows high vegetation in the contours file. - PIX4Dmapper - Pix4D Community
Generating smooth surfaces from contours - SketchUp - SketchUp
Detailed Curve and Surface Shaping and Smoothing
PDF] Computing smooth surface contours with accurate topology
Surface Editing, Smooth Surface Simplify surface raise or lower
Methods to Smooth Surfaces