Table 3: Qualitative interpretive table used for visual interpretation. Landforms were delineated using these measurements. For example, Top of Ridge was delineated based on a low value for SD of curvature, a high value for the pit fill metric, a low value for SD of slope, and a low value for the spline.

Roughness metric
Top of Ridge Top Slope Lower Slope Valley Bottom Shale Hill

SD of curvature (1)LowHighMediumHighLow
Pit fill metric (2)HighLowMediumHighLow
SD of slope (3)LowHighMediumHighLow
Spline (4)LowHighMediumHighLow