1994 Ph-D, Physical Oceanography, Hamburg University, Germany
1989 Diploma, Physical Oceanography, Hamburg University, Germany
since 2004: Senior Scientist, MPI-M, Ocean in the Earth System Department, Research Group Leader
1999-2004: Scientist, MPI-M, Physical Climate System Department, German Ministry for Education and Research (BMBF) Project “CLIVAR”
1996-1999 Post Doc Scientist, Institute for Marine Sciences, Kiel, Ocean Physics Department, German Ministry for Education and Research (BMBF) Project “WOCE"
1994-1996 Post Doc Scientist, Program in Atmosphere and Ocean Sciences, Princeton University, USA
1992-1995 PH D student, Institute for Marine Sciences, Hamburg University
1989-1992 Scientist, Federal Hydrographic Agency (BSH), Hamburg, Germany
Since 2018 WCRP: Member of the Working Group on Coupled Modelling
Since 2009 Paleo Model Intercomparison Project, Member of the Scientific Committee
2009-2013 WCRP/IGBP: Member of the PAGES/CLIVAR Intersection Working Group
2005-2007 WCRP Climate and Cryosphere Program (CLIC): Member of the Arctic Climate
Panel
Convenor of EGU-sessions
Scientific Research Staff Representative to the Max Planck Society, 2005-2007.
Reviewer for scientific journals (JPO, J. Climate, Tellus, JGR, GRL, Climate of the Past, Climate Dynamics, Theor. Appl. Climatol., Nature Geosc.) and funding agencies (NSF, NERC, EU-ERC).