Geomorphometry
Geomorphometry, or geomorphometrics (Ancient Greek: γῆ, romanized: gê, lit. 'earth' + Ancient Greek: μορφή, romanized: morphḗ, lit. 'form, shape' + Ancient Greek: μέτρον, romanized: métron, lit. 'measure'), is the science and practice of measuring the characteristics of terrain, the shape of the surface of the Earth, and the effects of this surface form on human and natural geography. It gathers various mathematical, statistical and image processing techniques that can be used to quantify morphological, hydrological, ecological and other aspects of a land surface.