Sören Iwe

Sören Iwe is a researcher at the Leibniz Institute for Baltic Sea Research (IOW), specializing in marine biogeochemistry and nitrogen cycling in aquatic systems. His work focuses on quantifying nitrogen fixation by cyanobacteria in the Baltic Sea and Gulf of Finland, a key process exacerbating regional eutrophication.

• Institution: Leibniz Institute for Baltic Sea Research (IOW)
• Department: Working Group on Biogeochemistry of Environmentally Relevant Gases

His research leverages advanced techniques like Gas Equilibrium - Membrane-Inlet Mass Spectrometry (GE-MIMS) to measure nitrogen and argon concentrations in surface waters. This data is combined with numerical modeling (GETM) and satellite observations to extrapolate nitrogen fixation rates across entire basins. Projects like NArrFix (DFG grants SCHM 2503/8-1 and SCHN 582/9-1) highlight his contributions to understanding biogeochemical processes in marine ecosystems.

Iwe collaborates with institutions such as the Finnish Environment Institute (SYKE) and the Federal Maritime and Hydrographic Agency (BSH) to integrate remote sensing data and validate findings through cross-disciplinary consistency checks. His work addresses critical uncertainties in nitrogen budget estimation methods and interannual variability in cyanobacterial blooms.