“…Morphometric variables used for classification include: - Elevation, slope, and curvature (Schneider et al, ; Verhagen & Drăguţ, )
- Nearest neighbour analysis, size, shape, and circularity (Harrower et al, ; Scheutter et al, 2013)
- Hillshade and topographic position index (Schneider et al, )
- Principle component analysis (Chen, Comer, Priebe, Sussman, & Tilton, )
- Orientation and topographic contours (D’Orazio et al, ; Figorito & Tarantino, )
- Eccentricity (Figorito & Tarantino, )
- Volume (Menze & Ur, )
…”