Fig. 4

Digital elevation models (DEMs) of KB (a and b), NOL (c and d) and NOS (e and f) from 2020 (left side) and 2022 (right side). Created with QGIS (version 3.16.16-Hannover, https://qgis.org). Projection: ETRS89/UTM zone 32 N.

Digital elevation models (DEMs) of KB (a and b), NOL (c and d) and NOS (e and f) from 2020 (left side) and 2022 (right side). Created with QGIS (version 3.16.16-Hannover, https://qgis.org). Projection: ETRS89/UTM zone 32 N.