Geomorphological Data from Detonation Craters in the Fehmarn Belt, German Baltic Sea

Svenja Papenmeier, Alexander Darr and Peter Feldens
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Svenja Papenmeier: Leibniz-Institute for Baltic Sea Research Warnemünde, 18119 Rostock, Germany
Alexander Darr: Leibniz-Institute for Baltic Sea Research Warnemünde, 18119 Rostock, Germany
Peter Feldens: Leibniz-Institute for Baltic Sea Research Warnemünde, 18119 Rostock, Germany

Data, 2022, vol. 7, issue 5, 1-10

Abstract: Military munitions from World War I and II dumped at the seafloor are a threat to the marine environment and its users. Decades of saltwater exposure make the explosives fragile and difficult to dispose of. If required, the munition is blast-in-place. In August 2019, 42 ground mines were detonated in a controlled manner underwater during a NATO maneuver in the German Natura2000 Special Area of Conservation Fehmarn Belt, the Baltic Sea. In June 2020, four detonation craters were investigated with a multibeam echosounder for the first time. This dataset is represented here as maps of bathymetry, slope angle, and height difference to the surrounding. The circular craters were still clearly visible a year after the detonation. The diameter and depth of the structures were between 7.5–12.6 m and 0.7–2.2 m, respectively. In total, about 321 m 2 of the seafloor was destroyed along the track line.

Keywords: multibeam echosounder; ground mines; detonation crater; Fehmarn Belt; Baltic Sea (search for similar items in EconPapers)
JEL-codes: C8 C80 C81 C82 C83 (search for similar items in EconPapers)
Date: 2022
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