From April 12 to 16, 2021, NIhK again participated in a geophysical survey in the Bay of Kiel initiated by the Institute for Pre- and Protohistoric Archaeology of the Christian-Albrechts-University Kiel and the Institute for the Protection of Maritime Infrastructures of the German Aerospace Center (DLR) from aboard the research vessel LITTORINA. With the help of DLR's AUV (autonomous underwater vehicle) SeaCat, data for detailed bathymetry was obtained in the area of the Strande LA 163 site. Based on these new data, a measurement discrepancy between the previous seismic data and the three-dimensional data generated by divers via computer vision photogrammetry can be validated.
In addition, with the assistance of geophysicist Dennis Wilken of the Applied Geophysics Division of the Institute of Geosciences of the Christian-Albrechts-University Kiel, sediment sonar data could be produced that can be used to trace the paleotopography more precisely. In particular, the course of a glacial channel in the wider vicinity of the site is to be specified in order to clarify a possible transport route into the hinterland for the Middle Stone Age wild hunters.