Middle Atmosphere, Solar Variability, and Climate Interactions
SOHO composite figure courtesy ESA/NASA: Earth in the space environment
We investigate processes in the middle atmosphere to better understand their impact on climate and weather. The middle atmosphere comprises the altitude region between 10 km and 110 km and is a transition region between the lower atmosphere and space. As such, it is strongly influenced by external - solar and cosmic - forcings.
We are particularly interested in
- the impact of solar variability on the middle atmosphere,
- airglow in the altitude region between 80 km and 110 km,
- the impact of stellar variability on the atmospheres of Earth-like exoplantes.
For our investigations, we analyse data from satellites like SCIAMACHY and MIPAS on ENVISAT, and perform model experiments using models of different degrees of complexity of the Earth atmosphere (EMAC/Edith, 3dCTM, UBIC), which we continually improve.