Institut für Ostseeforschung Warnemünde
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Madline Kniebusch

Madline Kniebusch
Address:
Leibniz-Institute for Baltic Sea Research
Seestrasse 15
D-18119 Rostock
Phone:
+49 381 5197 172
Fax:
+49 381 5197 114
E-Mail:

PhD representative

Expertise

During my PhD I am dealing with long model simulations of the Baltic Sea forced with atmospheric reconstructions since the first measurements in 1850. As a meteorologist I am particularly interested in changes due to climate change. I statistically detect changes in temperature, salinity and biogeochemical variables and attribute them to changes in the atmosphere and the environmental pollution in order to understand how the Baltic Sea is changing in a warming climate.

 

The Baltic Sea is one of the fastest changing marine ecosystems of the earth. Sea surface temperature (SST) trends are more than seven times higher than the global mean SST during 1982-2008. Figure 1 shows the spatial distribution of simulated SST trends during this period.

 

In addition, also the sea surface salinity (SSS) is very variable in space and time with low-frequency oscillations with periods of about 30 years. We found out that the North-South gradient in SSS increased during the past 100 years (Figure 2) leading to even sharper differences. However, in the Baltic Sea mean salinity, no significant long-term trend was found.

 

Using sensitivity experiments, the combined effects of changing salinity and temperature as well as eutrophication on the marine ecosystem of the Baltic Sea have been disentangled.