TY - JOUR A1 - Kniebusch, Madline A1 - Meier, H.E. Markus A1 - Radtke, Hagen T1 - Changing Salinity Gradients in the Baltic Sea As a Consequence of Altered Freshwater Budgets Y1 - 2019 VL - 46 IS - 16 SP - 9739 EP - 9747 JF - Geophysical Research Letters DO - 10.1029/2019GL083902 DO - 10.23689/fidgeo-4984 N2 - Climate change is expected to enhance the hydrological cycle in northern latitudes reducing the salinity in the Baltic Sea, a land-locked marginal sea with a large catchment area located in northern Europe. With the help of ocean simulations forced by historical atmospheric and hydrological reconstructions and local observations, we analyzed long-term changes in the sea surface salinity of the Baltic Sea as well as its latitudinal gradient. The variability of both is dominated by multidecadal oscillations with a period of about 30 years, while both atmospheric variables, wind and river runoff, contribute to this variability. Centennial changes show a statistically significant positive trend in the North-South gradient of sea surface salinity for 1900–2008. This change is mainly attributed to increased river runoff from the northernmost catchment indicating a footprint of the anthropogenic impact on salinity with consequences for the marine ecosystem and species distributions. UR - http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/9330 ER -