In-situ-techniques to probe the atmosphere

We study natural and anthropogenic contributions to the chemical composition of the atmosphere, interactions of human-made pollutants that have the potential to interact with plant-emitted trace gases, and the biogeochemistry of greenhouse gases. Novel environmental mass spectrometers, such as PTR-MS, PTR-TOF-MS, SRI-QTOFMS are used along with optical techniques (absorption spectroscopy, chemical luminescence, cavitiy ring down spectroscopy) to measure atmospheric trace gases and aerosols. The group develops and maintains surface-atmosphere exchange experiments, engages in ground based and airborne field campaigns and performs controlled laboratory experiments. A particular research specialty is the application of fast in-situ techniques to study the turbulent exchange at the surface – atmosphere interface. In conjunction with process based models we aim to study atmospheric processes, to understand the composition and chemistry of earth's atmosphere, how it functions naturally, and how it is impacted by anthropogenic emissions and changing climate.

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