10.18453/rosdok_id00005302 Barghorn, Leonie Leonie Barghorn http://d-nb.info/gnd/1395762260 https://orcid.org/0000-0002-1907-7353 Universität Rostock 2025 500 Natural sciences 530 Physics 550 Earth sciences 2025 en https://purl.uni-rostock.de/rosdok/id00005302 urn:nbn:de:gbv:28-rosdok_id00005302-3 The climate system of the Baltic Sea is affected by anthropogenic climate change but it also exhibits a strong natural variability on time scales from years to decades. In this dissertation, results of long regional ocean model runs and global climate model ensembles are used to gain new insights on the natural climate variability of the Baltic Sea and possible climate-change driven long-term changes. Two focus topics are changes in the seasonality of saltwater inflows into the Baltic Sea and remote effects from the North Atlantic on Baltic Sea salinity and temperature variability.