Table 4. LiDAR based terrain change.

Class		Before the damage	After the damage	Change
Elevation(m)	Average	675.8	675.4	▼0.4
	Maximum	738.6	738.4	▼0.2
	Minimum	612.1	615.0	▲2.9
Slope(°)	Average	25.1	26.3	▲1.2
	Maximum	65.3	74.2	▲8.9
	Minimum	0.8	0.3	▼0.5