The Use of LiDAR Terrain Data in Characterizing Surface Roughness and Microtopography

Table 4

Mean values of roughness metrics by landform delineated by roughness metrics.

	Roughness metric
	Top of Ridge	Top Slope	Lower Slope	Valley Bottom	Shale Hill
SD of curvature (1)	2.27	3.10	2.50	3.19	2.23
Pit fill metric (2)	0.08	0.01	0.03	0.30	0.02
SD of slope (3)	2.49	3.49	2.91	4.00	2.85
Spline (4)	0.21	0.29	0.29	0.49	0.26