Atmospheric Remote Sensing
Airborne trace gas measurements and mesoscale modelling
Inverse data-driven estimation
Integrating surface-atmosphere Exchange Processes Across Scales - Modeling and Monitoring
Tall Tower Atmospheric Gas Measurements
Carbon Cycle Data Assimilation
Satellite-based remote sensing of greenhouse gases
Phone: +49 8153 283064 (external)
Remote sensing methods for atmospheric parameters and composition
My main interest is the application of remote sensing methods for the measurement of atmospheric trace gases. Many of these trace gases have characteristic spectral lines that can be observed from the ground, from an aircraft or from space. I am equally interested in
Since I have spent several hundred flight hours on board of research planes, I am also interested in all kinds of airborne atmospheric research.
During my PhD work I started with the analysis of microwave measurements of ozone, chlorine monoxide and water vapor in the mesosphere and stratosphere from the space shuttle. As a postdoc, I used microwave radiometers to measure stratospheric water vapor from the ground and from an aircraft.
As the group leader of the Atmospheric Remote Sensing group my main project is a ground-based Fourier-Transform Infrared (FTIR) spectrometer that we use to measure various greenhouse gases like CO2, CH4, CO, N2O, and many others in the atmosphere. The instrument measures absorption spectral lines from the trace gas molecules by looking at the sun. From the measured spectra, the total column concentration of the trace gases can be derived with great accuracy. The instrument has been set up for long term observations on Ascension Island in the South Atlantic Ocean in 2012.
Besides the passive remote sensing of trace gases, we also started to use active remote sensing methods for atmospheric parameters. One project is the evaluation of ceilometers to measure atmospheric mixing layer height in the context of the Integrated Carbon Observing System (ICOS), a future network of measurement stations to monitor the European carbon cycle.
Since 2010, I have also been an associate editor for the open access journal Atmospheric Measurement Techniques.