The analysis of surface textures plays an important role in the geomorphometric analysis of
high-resolution digital terrain models. Surface textures can be analyzed by means of
geostatistical variogram-based indices. The use of variogram-based indices is promising
because of their ability to consider the multiscale and anisotropic character of morphometric
data. However, similar to other variance-type statistics, variogram-based indices are
sensitive to the presence of hotspots and non-stationary data. Consequently, we present a …