Multibeam bathymetry processed data (RESON T51-P multibeam echosounder) was collected onboard RV ALKOR during cruise AL603 in the German Baltic Sea at Bay of Aarhus. The raw data (QPS .dbformat) were processed using QPS Qimera software (v 1.7), based on the following workflow: 0.Raw data -> 1.Apply correct Sound Velocity Profiles -> 2.Create dynamic surface (shallow Mode) -> 3.Apply Spline Filter (Medium/Weak)- > 4. Finalize with manual 2D and 3D editing, -> 5.Export in GeoTIFF format and projected in the UTM32N coordinate system (EPSG:32632). The produced rasters are named AL603_T51_'working area'_'resolution in cm'. The bathymetry dataset here is gridded at 0.25 m resolution. The data products were created in the context of the DAM (German Marine Research Alliance), CONMAR research project.

These data should not be used for navigational purposes.