Ocean Circulation and Climate Dynamics

Ocean-Atmosphere Chemistry-Climate Interactions

The chemical composition of the atmosphere defines its radiative properties, and changes in atmospheric composition drive changes in radiative forcing and therefore climate change. On the other hand, changes in climate can influence atmospheric chemistry, for example through changes in surface emissions and in atmospheric circulation. Understanding the complex interactions between atmospheric composition, radiation and dynamics is essential for reliable projections of the future climate. We use Earth observations from various sources, including ship-, airplane-, and satellite-based instruments, together with numeric model simulations to investigate the role of atmospheric chemistry in the climate system. Special foci are on the tropical tropopause layer (TTL), a key region for climate, and on ocean-atmosphere exchange. In particular, we aim to understand how anthropogenic activities in marine and oceanic environments will impact radiative forcing and ozone recovery.

Research Areas

  • Impact of oceanic trace gases on atmospheric chemistry
  • Atmospheric transport from the surface to the stratosphere
  • Chemistry-Climate Interactions in the TTL
  • Satellite-based observations of atmospheric composition
  • Evaluation of Earth-System models and reanalysis data sets
  • Stratospheric ozone






Dr. Susann Tegtmeier



Fuhlbrügge, Steffen (Scientist)

Jia, Yue (Scientist)

Kumar Yadav, Atul (PhD student)

M.Sc. Maas, Josefine (PhD student)

Ivanciu, Ioana (student helper)