1977 - 1982 Diplom thesis and PhD thesis at the High Energy Physics Lab DESY in Hamburg

since 1983 Researcher at the GKSS Research Centre Geesthacht

1983-1987 Study of the suspended sediment dynamics in tidal estuaries

1987-1994 Development of the "Wadden Sea information System" WATiS for Wadden Sea research and management

1992 Member of the "Trilateral Monitoring Expert Group" which developed the concept for the "Trilateral Monitoring and Assessment Program" TMAP

1994-1996 Chairman of the "Trilateral Data Handling Group" TDG

1995-1999 Project manager of the GKSS Wadden Sea research; research activities comprise erosion properties of tidal flat surfaces and bench-mark data sets for coupled sediment transport models in coastal areas

since 2000 Head of the department "Coastal Oceanographic Measuring Systems" KOK

> Stability properties of tidal flat surfaces

> Suspended sediment dynamics in coastal waters

> Development of monitoring systems

SEAPOCS Sedimentation, Erosion and Morphodynamics in Coastal Areas

PROMISE Pre-Operational Monitoring in the Seas of Europe

MONIWATT Monitoring Methods for the Eulitoral of the Wadden Sea

ODERHAFF Hydrodynamics and Transports in Tideless Coastal Waters

SEMCA Sedimentation, Erosion and Morphodynamics in Coastal Areas

> PhD thesis

> High energy physics

> Environmental information systems

> Eccosystem research and monitoring

> Suspended sediment dynamics

> Erosion of sediment surfaces