In 2021, geologists discovered an unusual row of stones, almost 1 km long, at the bottom of Mecklenburg Bight. The site is located around 10 kilometres off Rerik in 21 metres water depth. The approximately 1,500 stones are aligned so regularly that a natural origin seems unlikely. A team of researchers from different disciplines now concluded, that Stone Age hunter-gatherers likely built this structure around 11,000 years ago to hunt reindeer. The finding represents the first discovery of a Stone Age hunting structure in the Baltic Sea region.
A large influx of saltwater into the south-western Baltic Sea is currently being detected. The autonomous measuring station operated by the IOW at the Darss Sill has been measuring a strong inflow of salty water throughout the water column since 20.12.2023, which is a comparatively rare occurrence. Over Christmas day, it will become clear whether the inflow is similar in scale to the major saltwater intrusion in 2014. Saltwater inflows are accompanied by oxygen-rich water that could aerate oxygen-poor, deeper basins in the Baltic Sea, which in turn prevents the formation of toxic hydrogen sulphide.
How storm surges affect the coastal marshes of the Baltic Sea – Bachelor graduate Denise Otto receives Otto Krümmel Prize 2023
September 20, 2023 / Kiel, Germany. For her bachelor's thesis, Denise Otto studied the biogeochemical effects of floods on the soils of a coastal marsh. Today, the young scientist receives the Otto Krümmel Award 2023 in Kiel. Endowed with 1,500 euros, the prize is awarded annually by the “Society to Support GEOMAR Helmholtz Centre for Ocean Research Kiel” for outstanding bachelor theses in marine research.
CO2 removal with the help of the ocean: New brochure provides background knowledge for urgent climate policy decisions
In recent decades, the world’s ocean has absorbed around 25 percent of anthropogenic carbon dioxide (CO2) emissions, thus significantly slowing down climate change. This natural climate service of the ocean could be boosted systematically by enhancing the CO2 uptake of the sea through human action. Relevant methods and the respective research are outlined in the brochure now published by the research mission CDRmare “Marine Carbon Sinks in Decarbonisation Pathways” of the German Alliance for Marine Research (DAM).
The water temperature at the bottom of the Bornholm Basin in the central Baltic Sea has risen faster in recent decades than at the surface. Warnemünde researchers have now been able to explain this unusual development with a temporal shift in the exchange of water between the North Sea and the Baltic Sea. This leads - in addition to the rapid temperature increase in the surface water, which can be observed everywhere in the Baltic Sea and is due to global warming – to a temperature increase in the deep water, too. The research results have now been published in the renowned journal Geophysical Research Letters.