Repetitive bathymetric surveys in the Lütschine delta (Lake Brienz, Switzerland)

This dataset includes Multibeam Echo Sounder Digital Bathymetric Models (DBMs or DEMS) and their associated Digital Uncertainty Models (DUMs) from the proximal Lütschine Delta of Lake Brienz, Switzerland. Surveys were performed in 2018 and 2023. By subtracting the DBMs within a GIS software (QGIS or ArcGIS) , a DBM of Difference (DoD) reveals the changes in the lakefloor over a five-year period. These surfaces contain a few areas with missing data, therefore an interpolated surface for 2018 is also included for mapping purposes.