Formation of the Arctic Basin

Polarstern for geophysics in the Arctic Ocean

Connection of the Arctic Ocean to the World Oceans

What have we learned about the connection of the Arctic Ocean to the other oceans?

Lakes as a climate archives

Old lake-level terraces at the current shore (Photo: Catalina Gebhardt)

Find our lacustrine projects on this page...

Geodynamic processes

Observatories and long-term observations

follow this link to the research at our observatories

Compilations of bathymetric data

Madiba Sea Mount, south of South Africa, discovered 2013 with RV Polarstern (Graphic: Jan Erik Arndt)

Transition from the Cretaceous Greenhouse to the Tertiary Icehouse

What initiated the transition from the Cretaceous hot climate to the Tertiary cold climate? We contribute to solving this question.

popular hypothesis on plate tectonics